Location: PHPKode > scripts > Infinite-social-wall > philipbjorge-Infinite-Social-Wall-a9b2a23/lib/simplepie.inc
<?php
/**
 * SimplePie
 *
 * A PHP-Based RSS and Atom Feed Framework.
 * Takes the hard work out of managing a complete RSS/Atom solution.
 *
 * Copyright (c) 2004-2011, Ryan Parman, Geoffrey Sneddon, Ryan McCue, and contributors
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are
 * permitted provided that the following conditions are met:
 *
 * 	* Redistributions of source code must retain the above copyright notice, this list of
 * 	  conditions and the following disclaimer.
 *
 * 	* Redistributions in binary form must reproduce the above copyright notice, this list
 * 	  of conditions and the following disclaimer in the documentation and/or other materials
 * 	  provided with the distribution.
 *
 * 	* Neither the name of the SimplePie Team nor the names of its contributors may be used
 * 	  to endorse or promote products derived from this software without specific prior
 * 	  written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS
 * AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 * @package SimplePie
 * @version 1.2.1
 * @copyright 2004-2011 Ryan Parman, Geoffrey Sneddon, Ryan McCue
 * @author Ryan Parman
 * @author Geoffrey Sneddon
 * @author Ryan McCue
 * @link http://simplepie.org/ SimplePie
 * @link http://simplepie.org/support/ Please submit all bug reports and feature requests to the SimplePie forums
 * @license http://www.opensource.org/licenses/bsd-license.php BSD License
 * @todo phpDoc comments
 */

/**
 * SimplePie Name
 */
define('SIMPLEPIE_NAME', 'SimplePie');

/**
 * SimplePie Version
 */
define('SIMPLEPIE_VERSION', '1.2.1-dev');

/**
 * SimplePie Build
 */
define('SIMPLEPIE_BUILD', '20111015034325');

/**
 * SimplePie Website URL
 */
define('SIMPLEPIE_URL', 'http://simplepie.org');

/**
 * SimplePie Useragent
 * @see SimplePie::set_useragent()
 */
define('SIMPLEPIE_USERAGENT', SIMPLEPIE_NAME . '/' . SIMPLEPIE_VERSION . ' (Feed Parser; ' . SIMPLEPIE_URL . '; Allow like Gecko) Build/' . SIMPLEPIE_BUILD);

/**
 * SimplePie Linkback
 */
define('SIMPLEPIE_LINKBACK', '<a href="' . SIMPLEPIE_URL . '" title="' . SIMPLEPIE_NAME . ' ' . SIMPLEPIE_VERSION . '">' . SIMPLEPIE_NAME . '</a>');

/**
 * No Autodiscovery
 * @see SimplePie::set_autodiscovery_level()
 */
define('SIMPLEPIE_LOCATOR_NONE', 0);

/**
 * Feed Link Element Autodiscovery
 * @see SimplePie::set_autodiscovery_level()
 */
define('SIMPLEPIE_LOCATOR_AUTODISCOVERY', 1);

/**
 * Local Feed Extension Autodiscovery
 * @see SimplePie::set_autodiscovery_level()
 */
define('SIMPLEPIE_LOCATOR_LOCAL_EXTENSION', 2);

/**
 * Local Feed Body Autodiscovery
 * @see SimplePie::set_autodiscovery_level()
 */
define('SIMPLEPIE_LOCATOR_LOCAL_BODY', 4);

/**
 * Remote Feed Extension Autodiscovery
 * @see SimplePie::set_autodiscovery_level()
 */
define('SIMPLEPIE_LOCATOR_REMOTE_EXTENSION', 8);

/**
 * Remote Feed Body Autodiscovery
 * @see SimplePie::set_autodiscovery_level()
 */
define('SIMPLEPIE_LOCATOR_REMOTE_BODY', 16);

/**
 * All Feed Autodiscovery
 * @see SimplePie::set_autodiscovery_level()
 */
define('SIMPLEPIE_LOCATOR_ALL', 31);

/**
 * No known feed type
 */
define('SIMPLEPIE_TYPE_NONE', 0);

/**
 * RSS 0.90
 */
define('SIMPLEPIE_TYPE_RSS_090', 1);

/**
 * RSS 0.91 (Netscape)
 */
define('SIMPLEPIE_TYPE_RSS_091_NETSCAPE', 2);

/**
 * RSS 0.91 (Userland)
 */
define('SIMPLEPIE_TYPE_RSS_091_USERLAND', 4);

/**
 * RSS 0.91 (both Netscape and Userland)
 */
define('SIMPLEPIE_TYPE_RSS_091', 6);

/**
 * RSS 0.92
 */
define('SIMPLEPIE_TYPE_RSS_092', 8);

/**
 * RSS 0.93
 */
define('SIMPLEPIE_TYPE_RSS_093', 16);

/**
 * RSS 0.94
 */
define('SIMPLEPIE_TYPE_RSS_094', 32);

/**
 * RSS 1.0
 */
define('SIMPLEPIE_TYPE_RSS_10', 64);

/**
 * RSS 2.0
 */
define('SIMPLEPIE_TYPE_RSS_20', 128);

/**
 * RDF-based RSS
 */
define('SIMPLEPIE_TYPE_RSS_RDF', 65);

/**
 * Non-RDF-based RSS (truly intended as syndication format)
 */
define('SIMPLEPIE_TYPE_RSS_SYNDICATION', 190);

/**
 * All RSS
 */
define('SIMPLEPIE_TYPE_RSS_ALL', 255);

/**
 * Atom 0.3
 */
define('SIMPLEPIE_TYPE_ATOM_03', 256);

/**
 * Atom 1.0
 */
define('SIMPLEPIE_TYPE_ATOM_10', 512);

/**
 * All Atom
 */
define('SIMPLEPIE_TYPE_ATOM_ALL', 768);

/**
 * All feed types
 */
define('SIMPLEPIE_TYPE_ALL', 1023);

/**
 * No construct
 */
define('SIMPLEPIE_CONSTRUCT_NONE', 0);

/**
 * Text construct
 */
define('SIMPLEPIE_CONSTRUCT_TEXT', 1);

/**
 * HTML construct
 */
define('SIMPLEPIE_CONSTRUCT_HTML', 2);

/**
 * XHTML construct
 */
define('SIMPLEPIE_CONSTRUCT_XHTML', 4);

/**
 * base64-encoded construct
 */
define('SIMPLEPIE_CONSTRUCT_BASE64', 8);

/**
 * IRI construct
 */
define('SIMPLEPIE_CONSTRUCT_IRI', 16);

/**
 * A construct that might be HTML
 */
define('SIMPLEPIE_CONSTRUCT_MAYBE_HTML', 32);

/**
 * All constructs
 */
define('SIMPLEPIE_CONSTRUCT_ALL', 63);

/**
 * Don't change case
 */
define('SIMPLEPIE_SAME_CASE', 1);

/**
 * Change to lowercase
 */
define('SIMPLEPIE_LOWERCASE', 2);

/**
 * Change to uppercase
 */
define('SIMPLEPIE_UPPERCASE', 4);

/**
 * PCRE for HTML attributes
 */
define('SIMPLEPIE_PCRE_HTML_ATTRIBUTE', '((?:[\x09\x0A\x0B\x0C\x0D\x20]+[^\x09\x0A\x0B\x0C\x0D\x20\x2F\x3E][^\x09\x0A\x0B\x0C\x0D\x20\x2F\x3D\x3E]*(?:[\x09\x0A\x0B\x0C\x0D\x20]*=[\x09\x0A\x0B\x0C\x0D\x20]*(?:"(?:[^"]*)"|\'(?:[^\']*)\'|(?:[^\x09\x0A\x0B\x0C\x0D\x20\x22\x27\x3E][^\x09\x0A\x0B\x0C\x0D\x20\x3E]*)?))?)*)[\x09\x0A\x0B\x0C\x0D\x20]*');

/**
 * PCRE for XML attributes
 */
define('SIMPLEPIE_PCRE_XML_ATTRIBUTE', '((?:\s+(?:(?:[^\s:]+:)?[^\s:]+)\s*=\s*(?:"(?:[^"]*)"|\'(?:[^\']*)\'))*)\s*');

/**
 * XML Namespace
 */
define('SIMPLEPIE_NAMESPACE_XML', 'http://www.w3.org/XML/1998/namespace');

/**
 * Atom 1.0 Namespace
 */
define('SIMPLEPIE_NAMESPACE_ATOM_10', 'http://www.w3.org/2005/Atom');

/**
 * Atom 0.3 Namespace
 */
define('SIMPLEPIE_NAMESPACE_ATOM_03', 'http://purl.org/atom/ns#');

/**
 * RDF Namespace
 */
define('SIMPLEPIE_NAMESPACE_RDF', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#');

/**
 * RSS 0.90 Namespace
 */
define('SIMPLEPIE_NAMESPACE_RSS_090', 'http://my.netscape.com/rdf/simple/0.9/');

/**
 * RSS 1.0 Namespace
 */
define('SIMPLEPIE_NAMESPACE_RSS_10', 'http://purl.org/rss/1.0/');

/**
 * RSS 1.0 Content Module Namespace
 */
define('SIMPLEPIE_NAMESPACE_RSS_10_MODULES_CONTENT', 'http://purl.org/rss/1.0/modules/content/');

/**
 * RSS 2.0 Namespace
 * (Stupid, I know, but I'm certain it will confuse people less with support.)
 */
define('SIMPLEPIE_NAMESPACE_RSS_20', '');

/**
 * DC 1.0 Namespace
 */
define('SIMPLEPIE_NAMESPACE_DC_10', 'http://purl.org/dc/elements/1.0/');

/**
 * DC 1.1 Namespace
 */
define('SIMPLEPIE_NAMESPACE_DC_11', 'http://purl.org/dc/elements/1.1/');

/**
 * W3C Basic Geo (WGS84 lat/long) Vocabulary Namespace
 */
define('SIMPLEPIE_NAMESPACE_W3C_BASIC_GEO', 'http://www.w3.org/2003/01/geo/wgs84_pos#');

/**
 * GeoRSS Namespace
 */
define('SIMPLEPIE_NAMESPACE_GEORSS', 'http://www.georss.org/georss');

/**
 * Media RSS Namespace
 */
define('SIMPLEPIE_NAMESPACE_MEDIARSS', 'http://search.yahoo.com/mrss/');

/**
 * Wrong Media RSS Namespace
 */
define('SIMPLEPIE_NAMESPACE_MEDIARSS_WRONG', 'http://search.yahoo.com/mrss');

/**
 * iTunes RSS Namespace
 */
define('SIMPLEPIE_NAMESPACE_ITUNES', 'http://www.itunes.com/dtds/podcast-1.0.dtd');

/**
 * XHTML Namespace
 */
define('SIMPLEPIE_NAMESPACE_XHTML', 'http://www.w3.org/1999/xhtml');

/**
 * IANA Link Relations Registry
 */
define('SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY', 'http://www.iana.org/assignments/relation/');

/**
 * Whether we're running on PHP5
 */
define('SIMPLEPIE_PHP5', version_compare(PHP_VERSION, '5.0.0', '>='));

/**
 * No file source
 */
define('SIMPLEPIE_FILE_SOURCE_NONE', 0);

/**
 * Remote file source
 */
define('SIMPLEPIE_FILE_SOURCE_REMOTE', 1);

/**
 * Local file source
 */
define('SIMPLEPIE_FILE_SOURCE_LOCAL', 2);

/**
 * fsockopen() file source
 */
define('SIMPLEPIE_FILE_SOURCE_FSOCKOPEN', 4);

/**
 * cURL file source
 */
define('SIMPLEPIE_FILE_SOURCE_CURL', 8);

/**
 * file_get_contents() file source
 */
define('SIMPLEPIE_FILE_SOURCE_FILE_GET_CONTENTS', 16);

/**
 * SimplePie
 *
 * @package SimplePie
 */
class SimplePie
{
	/**
	 * @var array Raw data
	 * @access private
	 */
	var $data = array();

	/**
	 * @var mixed Error string
	 * @access private
	 */
	var $error;

	/**
	 * @var object Instance of SimplePie_Sanitize (or other class)
	 * @see SimplePie::set_sanitize_class()
	 * @access private
	 */
	var $sanitize;

	/**
	 * @var string SimplePie Useragent
	 * @see SimplePie::set_useragent()
	 * @access private
	 */
	var $useragent = SIMPLEPIE_USERAGENT;

	/**
	 * @var string Feed URL
	 * @see SimplePie::set_feed_url()
	 * @access private
	 */
	var $feed_url;

	/**
	 * @var object Instance of SimplePie_File to use as a feed
	 * @see SimplePie::set_file()
	 * @access private
	 */
	var $file;

	/**
	 * @var string Raw feed data
	 * @see SimplePie::set_raw_data()
	 * @access private
	 */
	var $raw_data;

	/**
	 * @var int Timeout for fetching remote files
	 * @see SimplePie::set_timeout()
	 * @access private
	 */
	var $timeout = 10;

	/**
	 * @var bool Forces fsockopen() to be used for remote files instead
	 * of cURL, even if a new enough version is installed
	 * @see SimplePie::force_fsockopen()
	 * @access private
	 */
	var $force_fsockopen = false;

	/**
	 * @var bool Force the given data/URL to be treated as a feed no matter what
	 * it appears like
	 * @see SimplePie::force_feed()
	 * @access private
	 */
	var $force_feed = false;

	/**
	 * @var bool Enable/Disable XML dump
	 * @see SimplePie::enable_xml_dump()
	 * @access private
	 */
	var $xml_dump = false;

	/**
	 * @var bool Enable/Disable Caching
	 * @see SimplePie::enable_cache()
	 * @access private
	 */
	var $cache = true;

	/**
	 * @var int Cache duration (in seconds)
	 * @see SimplePie::set_cache_duration()
	 * @access private
	 */
	var $cache_duration = 3600;

	/**
	 * @var int Auto-discovery cache duration (in seconds)
	 * @see SimplePie::set_autodiscovery_cache_duration()
	 * @access private
	 */
	var $autodiscovery_cache_duration = 604800; // 7 Days.

	/**
	 * @var string Cache location (relative to executing script)
	 * @see SimplePie::set_cache_location()
	 * @access private
	 */
	var $cache_location = './cache';

	/**
	 * @var string Function that creates the cache filename
	 * @see SimplePie::set_cache_name_function()
	 * @access private
	 */
	var $cache_name_function = 'md5';

	/**
	 * @var bool Reorder feed by date descending
	 * @see SimplePie::enable_order_by_date()
	 * @access private
	 */
	var $order_by_date = true;

	/**
	 * @var mixed Force input encoding to be set to the follow value
	 * (false, or anything type-cast to false, disables this feature)
	 * @see SimplePie::set_input_encoding()
	 * @access private
	 */
	var $input_encoding = false;

	/**
	 * @var int Feed Autodiscovery Level
	 * @see SimplePie::set_autodiscovery_level()
	 * @access private
	 */
	var $autodiscovery = SIMPLEPIE_LOCATOR_ALL;

	/**
	 * @var string Class used for caching feeds
	 * @see SimplePie::set_cache_class()
	 * @access private
	 */
	var $cache_class = 'SimplePie_Cache';

	/**
	 * @var string Class used for locating feeds
	 * @see SimplePie::set_locator_class()
	 * @access private
	 */
	var $locator_class = 'SimplePie_Locator';

	/**
	 * @var string Class used for parsing feeds
	 * @see SimplePie::set_parser_class()
	 * @access private
	 */
	var $parser_class = 'SimplePie_Parser';

	/**
	 * @var string Class used for fetching feeds
	 * @see SimplePie::set_file_class()
	 * @access private
	 */
	var $file_class = 'SimplePie_File';

	/**
	 * @var string Class used for items
	 * @see SimplePie::set_item_class()
	 * @access private
	 */
	var $item_class = 'SimplePie_Item';

	/**
	 * @var string Class used for authors
	 * @see SimplePie::set_author_class()
	 * @access private
	 */
	var $author_class = 'SimplePie_Author';

	/**
	 * @var string Class used for categories
	 * @see SimplePie::set_category_class()
	 * @access private
	 */
	var $category_class = 'SimplePie_Category';

	/**
	 * @var string Class used for enclosures
	 * @see SimplePie::set_enclosures_class()
	 * @access private
	 */
	var $enclosure_class = 'SimplePie_Enclosure';

	/**
	 * @var string Class used for Media RSS <media:text> captions
	 * @see SimplePie::set_caption_class()
	 * @access private
	 */
	var $caption_class = 'SimplePie_Caption';

	/**
	 * @var string Class used for Media RSS <media:copyright>
	 * @see SimplePie::set_copyright_class()
	 * @access private
	 */
	var $copyright_class = 'SimplePie_Copyright';

	/**
	 * @var string Class used for Media RSS <media:credit>
	 * @see SimplePie::set_credit_class()
	 * @access private
	 */
	var $credit_class = 'SimplePie_Credit';

	/**
	 * @var string Class used for Media RSS <media:rating>
	 * @see SimplePie::set_rating_class()
	 * @access private
	 */
	var $rating_class = 'SimplePie_Rating';

	/**
	 * @var string Class used for Media RSS <media:restriction>
	 * @see SimplePie::set_restriction_class()
	 * @access private
	 */
	var $restriction_class = 'SimplePie_Restriction';

	/**
	 * @var string Class used for content-type sniffing
	 * @see SimplePie::set_content_type_sniffer_class()
	 * @access private
	 */
	var $content_type_sniffer_class = 'SimplePie_Content_Type_Sniffer';

	/**
	 * @var string Class used for item sources.
	 * @see SimplePie::set_source_class()
	 * @access private
	 */
	var $source_class = 'SimplePie_Source';

	/**
	 * @var mixed Set javascript query string parameter (false, or
	 * anything type-cast to false, disables this feature)
	 * @see SimplePie::set_javascript()
	 * @access private
	 */
	var $javascript = 'js';

	/**
	 * @var int Maximum number of feeds to check with autodiscovery
	 * @see SimplePie::set_max_checked_feeds()
	 * @access private
	 */
	var $max_checked_feeds = 10;

	/**
	 * @var array All the feeds found during the autodiscovery process
	 * @see SimplePie::get_all_discovered_feeds()
	 * @access private
	 */
	var $all_discovered_feeds = array();

	/**
	 * @var string Web-accessible path to the handler_favicon.php file.
	 * @see SimplePie::set_favicon_handler()
	 * @access private
	 */
	var $favicon_handler = '';

	/**
	 * @var string Web-accessible path to the handler_image.php file.
	 * @see SimplePie::set_image_handler()
	 * @access private
	 */
	var $image_handler = '';

	/**
	 * @var array Stores the URLs when multiple feeds are being initialized.
	 * @see SimplePie::set_feed_url()
	 * @access private
	 */
	var $multifeed_url = array();

	/**
	 * @var array Stores SimplePie objects when multiple feeds initialized.
	 * @access private
	 */
	var $multifeed_objects = array();

	/**
	 * @var array Stores the get_object_vars() array for use with multifeeds.
	 * @see SimplePie::set_feed_url()
	 * @access private
	 */
	var $config_settings = null;

	/**
	 * @var integer Stores the number of items to return per-feed with multifeeds.
	 * @see SimplePie::set_item_limit()
	 * @access private
	 */
	var $item_limit = 0;

	/**
	 * @var array Stores the default attributes to be stripped by strip_attributes().
	 * @see SimplePie::strip_attributes()
	 * @access private
	 */
	var $strip_attributes = array('bgsound', 'class', 'expr', 'id', 'style', 'onclick', 'onerror', 'onfinish', 'onmouseover', 'onmouseout', 'onfocus', 'onblur', 'lowsrc', 'dynsrc');

	/**
	 * @var array Stores the default tags to be stripped by strip_htmltags().
	 * @see SimplePie::strip_htmltags()
	 * @access private
	 */
	var $strip_htmltags = array('base', 'blink', 'body', 'doctype', 'embed', 'font', 'form', 'frame', 'frameset', 'html', 'iframe', 'input', 'marquee', 'meta', 'noscript', 'object', 'param', 'script', 'style');

	/**
	 * The SimplePie class contains feed level data and options
	 *
	 * There are two ways that you can create a new SimplePie object. The first
	 * is by passing a feed URL as a parameter to the SimplePie constructor
	 * (as well as optionally setting the cache location and cache expiry). This
	 * will initialise the whole feed with all of the default settings, and you
	 * can begin accessing methods and properties immediately.
	 *
	 * The second way is to create the SimplePie object with no parameters
	 * at all. This will enable you to set configuration options. After setting
	 * them, you must initialise the feed using $feed->init(). At that point the
	 * object's methods and properties will be available to you. This format is
	 * what is used throughout this documentation.
	 *
	 * @access public
	 * @since 1.0 Preview Release
	 * @param string $feed_url This is the URL you want to parse.
	 * @param string $cache_location This is where you want the cache to be stored.
	 * @param int $cache_duration This is the number of seconds that you want to store the cache file for.
	 */
	function SimplePie($feed_url = null, $cache_location = null, $cache_duration = null)
	{
		// Other objects, instances created here so we can set options on them
		$this->sanitize =& new SimplePie_Sanitize;

		// Set options if they're passed to the constructor
		if ($cache_location !== null)
		{
			$this->set_cache_location($cache_location);
		}

		if ($cache_duration !== null)
		{
			$this->set_cache_duration($cache_duration);
		}

		// Only init the script if we're passed a feed URL
		if ($feed_url !== null)
		{
			$this->set_feed_url($feed_url);
			$this->init();
		}
	}

	/**
	 * Used for converting object to a string
	 */
	function __toString()
	{
		return md5(serialize($this->data));
	}

	/**
	 * Remove items that link back to this before destroying this object
	 */
	function __destruct()
	{
		if ((version_compare(PHP_VERSION, '5.3', '<') || !gc_enabled()) && !ini_get('zend.ze1_compatibility_mode'))
		{
			if (!empty($this->data['items']))
			{
				foreach ($this->data['items'] as $item)
				{
					$item->__destruct();
				}
				unset($item, $this->data['items']);
			}
			if (!empty($this->data['ordered_items']))
			{
				foreach ($this->data['ordered_items'] as $item)
				{
					$item->__destruct();
				}
				unset($item, $this->data['ordered_items']);
			}
		}
	}

	/**
	 * Force the given data/URL to be treated as a feed no matter what it
	 * appears like
	 *
	 * @access public
	 * @since 1.1
	 * @param bool $enable Force the given data/URL to be treated as a feed
	 */
	function force_feed($enable = false)
	{
		$this->force_feed = (bool) $enable;
	}

	/**
	 * This is the URL of the feed you want to parse.
	 *
	 * This allows you to enter the URL of the feed you want to parse, or the
	 * website you want to try to use auto-discovery on. This takes priority
	 * over any set raw data.
	 *
	 * You can set multiple feeds to mash together by passing an array instead
	 * of a string for the $url. Remember that with each additional feed comes
	 * additional processing and resources.
	 *
	 * @access public
	 * @since 1.0 Preview Release
	 * @param mixed $url This is the URL (or array of URLs) that you want to parse.
	 * @see SimplePie::set_raw_data()
	 */
	function set_feed_url($url)
	{
		if (is_array($url))
		{
			$this->multifeed_url = array();
			foreach ($url as $value)
			{
				$this->multifeed_url[] = SimplePie_Misc::fix_protocol($value, 1);
			}
		}
		else
		{
			$this->feed_url = SimplePie_Misc::fix_protocol($url, 1);
		}
	}

	/**
	 * Provides an instance of SimplePie_File to use as a feed
	 *
	 * @access public
	 * @param object &$file Instance of SimplePie_File (or subclass)
	 * @return bool True on success, false on failure
	 */
	function set_file(&$file)
	{
		if (is_a($file, 'SimplePie_File'))
		{
			$this->feed_url = $file->url;
			$this->file =& $file;
			return true;
		}
		return false;
	}

	/**
	 * Allows you to use a string of RSS/Atom data instead of a remote feed.
	 *
	 * If you have a feed available as a string in PHP, you can tell SimplePie
	 * to parse that data string instead of a remote feed. Any set feed URL
	 * takes precedence.
	 *
	 * @access public
	 * @since 1.0 Beta 3
	 * @param string $data RSS or Atom data as a string.
	 * @see SimplePie::set_feed_url()
	 */
	function set_raw_data($data)
	{
		$this->raw_data = $data;
	}

	/**
	 * Allows you to override the default timeout for fetching remote feeds.
	 *
	 * This allows you to change the maximum time the feed's server to respond
	 * and send the feed back.
	 *
	 * @access public
	 * @since 1.0 Beta 3
	 * @param int $timeout The maximum number of seconds to spend waiting to retrieve a feed.
	 */
	function set_timeout($timeout = 10)
	{
		$this->timeout = (int) $timeout;
	}

	/**
	 * Forces SimplePie to use fsockopen() instead of the preferred cURL
	 * functions.
	 *
	 * @access public
	 * @since 1.0 Beta 3
	 * @param bool $enable Force fsockopen() to be used
	 */
	function force_fsockopen($enable = false)
	{
		$this->force_fsockopen = (bool) $enable;
	}

	/**
	 * Outputs the raw XML content of the feed, after it has gone through
	 * SimplePie's filters.
	 *
	 * Used only for debugging, this function will output the XML content as
	 * text/xml. When SimplePie reads in a feed, it does a bit of cleaning up
	 * before trying to parse it. Many parts of the feed are re-written in
	 * memory, and in the end, you have a parsable feed. XML dump shows you the
	 * actual XML that SimplePie tries to parse, which may or may not be very
	 * different from the original feed.
	 *
	 * @access public
	 * @since 1.0 Preview Release
	 * @param bool $enable Enable XML dump
	 */
	function enable_xml_dump($enable = false)
	{
		$this->xml_dump = (bool) $enable;
	}

	/**
	 * Enables/disables caching in SimplePie.
	 *
	 * This option allows you to disable caching all-together in SimplePie.
	 * However, disabling the cache can lead to longer load times.
	 *
	 * @access public
	 * @since 1.0 Preview Release
	 * @param bool $enable Enable caching
	 */
	function enable_cache($enable = true)
	{
		$this->cache = (bool) $enable;
	}

	/**
	 * Set the length of time (in seconds) that the contents of a feed
	 * will be cached.
	 *
	 * @access public
	 * @param int $seconds The feed content cache duration.
	 */
	function set_cache_duration($seconds = 3600)
	{
		$this->cache_duration = (int) $seconds;
	}

	/**
	 * Set the length of time (in seconds) that the autodiscovered feed
	 * URL will be cached.
	 *
	 * @access public
	 * @param int $seconds The autodiscovered feed URL cache duration.
	 */
	function set_autodiscovery_cache_duration($seconds = 604800)
	{
		$this->autodiscovery_cache_duration = (int) $seconds;
	}

	/**
	 * Set the file system location where the cached files should be stored.
	 *
	 * @access public
	 * @param string $location The file system location.
	 */
	function set_cache_location($location = './cache')
	{
		$this->cache_location = (string) $location;
	}

	/**
	 * Determines whether feed items should be sorted into reverse chronological order.
	 *
	 * @access public
	 * @param bool $enable Sort as reverse chronological order.
	 */
	function enable_order_by_date($enable = true)
	{
		$this->order_by_date = (bool) $enable;
	}

	/**
	 * Allows you to override the character encoding reported by the feed.
	 *
	 * @access public
	 * @param string $encoding Character encoding.
	 */
	function set_input_encoding($encoding = false)
	{
		if ($encoding)
		{
			$this->input_encoding = (string) $encoding;
		}
		else
		{
			$this->input_encoding = false;
		}
	}

	/**
	 * Set how much feed autodiscovery to do
	 *
	 * @access public
	 * @see SIMPLEPIE_LOCATOR_NONE
	 * @see SIMPLEPIE_LOCATOR_AUTODISCOVERY
	 * @see SIMPLEPIE_LOCATOR_LOCAL_EXTENSION
	 * @see SIMPLEPIE_LOCATOR_LOCAL_BODY
	 * @see SIMPLEPIE_LOCATOR_REMOTE_EXTENSION
	 * @see SIMPLEPIE_LOCATOR_REMOTE_BODY
	 * @see SIMPLEPIE_LOCATOR_ALL
	 * @param int $level Feed Autodiscovery Level (level can be a
	 * combination of the above constants, see bitwise OR operator)
	 */
	function set_autodiscovery_level($level = SIMPLEPIE_LOCATOR_ALL)
	{
		$this->autodiscovery = (int) $level;
	}

	/**
	 * Allows you to change which class SimplePie uses for caching.
	 * Useful when you are overloading or extending SimplePie's default classes.
	 *
	 * @access public
	 * @param string $class Name of custom class.
	 * @link http://php.net/manual/en/keyword.extends.php PHP4 extends documentation
	 * @link http://php.net/manual/en/language.oop5.basic.php#language.oop5.basic.extends PHP5 extends documentation
	 */
	function set_cache_class($class = 'SimplePie_Cache')
	{
		if (SimplePie_Misc::is_subclass_of($class, 'SimplePie_Cache'))
		{
			$this->cache_class = $class;
			return true;
		}
		return false;
	}

	/**
	 * Allows you to change which class SimplePie uses for auto-discovery.
	 * Useful when you are overloading or extending SimplePie's default classes.
	 *
	 * @access public
	 * @param string $class Name of custom class.
	 * @link http://php.net/manual/en/keyword.extends.php PHP4 extends documentation
	 * @link http://php.net/manual/en/language.oop5.basic.php#language.oop5.basic.extends PHP5 extends documentation
	 */
	function set_locator_class($class = 'SimplePie_Locator')
	{
		if (SimplePie_Misc::is_subclass_of($class, 'SimplePie_Locator'))
		{
			$this->locator_class = $class;
			return true;
		}
		return false;
	}

	/**
	 * Allows you to change which class SimplePie uses for XML parsing.
	 * Useful when you are overloading or extending SimplePie's default classes.
	 *
	 * @access public
	 * @param string $class Name of custom class.
	 * @link http://php.net/manual/en/keyword.extends.php PHP4 extends documentation
	 * @link http://php.net/manual/en/language.oop5.basic.php#language.oop5.basic.extends PHP5 extends documentation
	 */
	function set_parser_class($class = 'SimplePie_Parser')
	{
		if (SimplePie_Misc::is_subclass_of($class, 'SimplePie_Parser'))
		{
			$this->parser_class = $class;
			return true;
		}
		return false;
	}

	/**
	 * Allows you to change which class SimplePie uses for remote file fetching.
	 * Useful when you are overloading or extending SimplePie's default classes.
	 *
	 * @access public
	 * @param string $class Name of custom class.
	 * @link http://php.net/manual/en/keyword.extends.php PHP4 extends documentation
	 * @link http://php.net/manual/en/language.oop5.basic.php#language.oop5.basic.extends PHP5 extends documentation
	 */
	function set_file_class($class = 'SimplePie_File')
	{
		if (SimplePie_Misc::is_subclass_of($class, 'SimplePie_File'))
		{
			$this->file_class = $class;
			return true;
		}
		return false;
	}

	/**
	 * Allows you to change which class SimplePie uses for data sanitization.
	 * Useful when you are overloading or extending SimplePie's default classes.
	 *
	 * @access public
	 * @param string $class Name of custom class.
	 * @link http://php.net/manual/en/keyword.extends.php PHP4 extends documentation
	 * @link http://php.net/manual/en/language.oop5.basic.php#language.oop5.basic.extends PHP5 extends documentation
	 */
	function set_sanitize_class($class = 'SimplePie_Sanitize')
	{
		if (SimplePie_Misc::is_subclass_of($class, 'SimplePie_Sanitize'))
		{
			$this->sanitize =& new $class;
			return true;
		}
		return false;
	}

	/**
	 * Allows you to change which class SimplePie uses for handling feed items.
	 * Useful when you are overloading or extending SimplePie's default classes.
	 *
	 * @access public
	 * @param string $class Name of custom class.
	 * @link http://php.net/manual/en/keyword.extends.php PHP4 extends documentation
	 * @link http://php.net/manual/en/language.oop5.basic.php#language.oop5.basic.extends PHP5 extends documentation
	 */
	function set_item_class($class = 'SimplePie_Item')
	{
		if (SimplePie_Misc::is_subclass_of($class, 'SimplePie_Item'))
		{
			$this->item_class = $class;
			return true;
		}
		return false;
	}

	/**
	 * Allows you to change which class SimplePie uses for handling author data.
	 * Useful when you are overloading or extending SimplePie's default classes.
	 *
	 * @access public
	 * @param string $class Name of custom class.
	 * @link http://php.net/manual/en/keyword.extends.php PHP4 extends documentation
	 * @link http://php.net/manual/en/language.oop5.basic.php#language.oop5.basic.extends PHP5 extends documentation
	 */
	function set_author_class($class = 'SimplePie_Author')
	{
		if (SimplePie_Misc::is_subclass_of($class, 'SimplePie_Author'))
		{
			$this->author_class = $class;
			return true;
		}
		return false;
	}

	/**
	 * Allows you to change which class SimplePie uses for handling category data.
	 * Useful when you are overloading or extending SimplePie's default classes.
	 *
	 * @access public
	 * @param string $class Name of custom class.
	 * @link http://php.net/manual/en/keyword.extends.php PHP4 extends documentation
	 * @link http://php.net/manual/en/language.oop5.basic.php#language.oop5.basic.extends PHP5 extends documentation
	 */
	function set_category_class($class = 'SimplePie_Category')
	{
		if (SimplePie_Misc::is_subclass_of($class, 'SimplePie_Category'))
		{
			$this->category_class = $class;
			return true;
		}
		return false;
	}

	/**
	 * Allows you to change which class SimplePie uses for feed enclosures.
	 * Useful when you are overloading or extending SimplePie's default classes.
	 *
	 * @access public
	 * @param string $class Name of custom class.
	 * @link http://php.net/manual/en/keyword.extends.php PHP4 extends documentation
	 * @link http://php.net/manual/en/language.oop5.basic.php#language.oop5.basic.extends PHP5 extends documentation
	 */
	function set_enclosure_class($class = 'SimplePie_Enclosure')
	{
		if (SimplePie_Misc::is_subclass_of($class, 'SimplePie_Enclosure'))
		{
			$this->enclosure_class = $class;
			return true;
		}
		return false;
	}

	/**
	 * Allows you to change which class SimplePie uses for <media:text> captions
	 * Useful when you are overloading or extending SimplePie's default classes.
	 *
	 * @access public
	 * @param string $class Name of custom class.
	 * @link http://php.net/manual/en/keyword.extends.php PHP4 extends documentation
	 * @link http://php.net/manual/en/language.oop5.basic.php#language.oop5.basic.extends PHP5 extends documentation
	 */
	function set_caption_class($class = 'SimplePie_Caption')
	{
		if (SimplePie_Misc::is_subclass_of($class, 'SimplePie_Caption'))
		{
			$this->caption_class = $class;
			return true;
		}
		return false;
	}

	/**
	 * Allows you to change which class SimplePie uses for <media:copyright>
	 * Useful when you are overloading or extending SimplePie's default classes.
	 *
	 * @access public
	 * @param string $class Name of custom class.
	 * @link http://php.net/manual/en/keyword.extends.php PHP4 extends documentation
	 * @link http://php.net/manual/en/language.oop5.basic.php#language.oop5.basic.extends PHP5 extends documentation
	 */
	function set_copyright_class($class = 'SimplePie_Copyright')
	{
		if (SimplePie_Misc::is_subclass_of($class, 'SimplePie_Copyright'))
		{
			$this->copyright_class = $class;
			return true;
		}
		return false;
	}

	/**
	 * Allows you to change which class SimplePie uses for <media:credit>
	 * Useful when you are overloading or extending SimplePie's default classes.
	 *
	 * @access public
	 * @param string $class Name of custom class.
	 * @link http://php.net/manual/en/keyword.extends.php PHP4 extends documentation
	 * @link http://php.net/manual/en/language.oop5.basic.php#language.oop5.basic.extends PHP5 extends documentation
	 */
	function set_credit_class($class = 'SimplePie_Credit')
	{
		if (SimplePie_Misc::is_subclass_of($class, 'SimplePie_Credit'))
		{
			$this->credit_class = $class;
			return true;
		}
		return false;
	}

	/**
	 * Allows you to change which class SimplePie uses for <media:rating>
	 * Useful when you are overloading or extending SimplePie's default classes.
	 *
	 * @access public
	 * @param string $class Name of custom class.
	 * @link http://php.net/manual/en/keyword.extends.php PHP4 extends documentation
	 * @link http://php.net/manual/en/language.oop5.basic.php#language.oop5.basic.extends PHP5 extends documentation
	 */
	function set_rating_class($class = 'SimplePie_Rating')
	{
		if (SimplePie_Misc::is_subclass_of($class, 'SimplePie_Rating'))
		{
			$this->rating_class = $class;
			return true;
		}
		return false;
	}

	/**
	 * Allows you to change which class SimplePie uses for <media:restriction>
	 * Useful when you are overloading or extending SimplePie's default classes.
	 *
	 * @access public
	 * @param string $class Name of custom class.
	 * @link http://php.net/manual/en/keyword.extends.php PHP4 extends documentation
	 * @link http://php.net/manual/en/language.oop5.basic.php#language.oop5.basic.extends PHP5 extends documentation
	 */
	function set_restriction_class($class = 'SimplePie_Restriction')
	{
		if (SimplePie_Misc::is_subclass_of($class, 'SimplePie_Restriction'))
		{
			$this->restriction_class = $class;
			return true;
		}
		return false;
	}

	/**
	 * Allows you to change which class SimplePie uses for content-type sniffing.
	 * Useful when you are overloading or extending SimplePie's default classes.
	 *
	 * @access public
	 * @param string $class Name of custom class.
	 * @link http://php.net/manual/en/keyword.extends.php PHP4 extends documentation
	 * @link http://php.net/manual/en/language.oop5.basic.php#language.oop5.basic.extends PHP5 extends documentation
	 */
	function set_content_type_sniffer_class($class = 'SimplePie_Content_Type_Sniffer')
	{
		if (SimplePie_Misc::is_subclass_of($class, 'SimplePie_Content_Type_Sniffer'))
		{
			$this->content_type_sniffer_class = $class;
			return true;
		}
		return false;
	}

	/**
	 * Allows you to change which class SimplePie uses item sources.
	 * Useful when you are overloading or extending SimplePie's default classes.
	 *
	 * @access public
	 * @param string $class Name of custom class.
	 * @link http://php.net/manual/en/keyword.extends.php PHP4 extends documentation
	 * @link http://php.net/manual/en/language.oop5.basic.php#language.oop5.basic.extends PHP5 extends documentation
	 */
	function set_source_class($class = 'SimplePie_Source')
	{
		if (SimplePie_Misc::is_subclass_of($class, 'SimplePie_Source'))
		{
			$this->source_class = $class;
			return true;
		}
		return false;
	}

	/**
	 * Allows you to override the default user agent string.
	 *
	 * @access public
	 * @param string $ua New user agent string.
	 */
	function set_useragent($ua = SIMPLEPIE_USERAGENT)
	{
		$this->useragent = (string) $ua;
	}

	/**
	 * Set callback function to create cache filename with
	 *
	 * @access public
	 * @param mixed $function Callback function
	 */
	function set_cache_name_function($function = 'md5')
	{
		if (is_callable($function))
		{
			$this->cache_name_function = $function;
		}
	}

	/**
	 * Set javascript query string parameter
	 *
	 * @access public
	 * @param mixed $get Javascript query string parameter
	 */
	function set_javascript($get = 'js')
	{
		if ($get)
		{
			$this->javascript = (string) $get;
		}
		else
		{
			$this->javascript = false;
		}
	}

	/**
	 * Set options to make SP as fast as possible.  Forgoes a
	 * substantial amount of data sanitization in favor of speed.
	 *
	 * @access public
	 * @param bool $set Whether to set them or not
	 */
	function set_stupidly_fast($set = false)
	{
		if ($set)
		{
			$this->enable_order_by_date(false);
			$this->remove_div(false);
			$this->strip_comments(false);
			$this->strip_htmltags(false);
			$this->strip_attributes(false);
			$this->set_image_handler(false);
		}
	}

	/**
	 * Set maximum number of feeds to check with autodiscovery
	 *
	 * @access public
	 * @param int $max Maximum number of feeds to check
	 */
	function set_max_checked_feeds($max = 10)
	{
		$this->max_checked_feeds = (int) $max;
	}

	function remove_div($enable = true)
	{
		$this->sanitize->remove_div($enable);
	}

	function strip_htmltags($tags = '', $encode = null)
	{
		if ($tags === '')
		{
			$tags = $this->strip_htmltags;
		}
		$this->sanitize->strip_htmltags($tags);
		if ($encode !== null)
		{
			$this->sanitize->encode_instead_of_strip($tags);
		}
	}

	function encode_instead_of_strip($enable = true)
	{
		$this->sanitize->encode_instead_of_strip($enable);
	}

	function strip_attributes($attribs = '')
	{
		if ($attribs === '')
		{
			$attribs = $this->strip_attributes;
		}
		$this->sanitize->strip_attributes($attribs);
	}

	function set_output_encoding($encoding = 'UTF-8')
	{
		$this->sanitize->set_output_encoding($encoding);
	}

	function strip_comments($strip = false)
	{
		$this->sanitize->strip_comments($strip);
	}

	/**
	 * Set element/attribute key/value pairs of HTML attributes
	 * containing URLs that need to be resolved relative to the feed
	 *
	 * @access public
	 * @since 1.0
	 * @param array $element_attribute Element/attribute key/value pairs
	 */
	function set_url_replacements($element_attribute = array('a' => 'href', 'area' => 'href', 'blockquote' => 'cite', 'del' => 'cite', 'form' => 'action', 'img' => array('longdesc', 'src'), 'input' => 'src', 'ins' => 'cite', 'q' => 'cite'))
	{
		$this->sanitize->set_url_replacements($element_attribute);
	}

	/**
	 * Set the handler to enable the display of cached favicons.
	 *
	 * @access public
	 * @param str $page Web-accessible path to the handler_favicon.php file.
	 * @param str $qs The query string that the value should be passed to.
	 */
	function set_favicon_handler($page = false, $qs = 'i')
	{
		if ($page !== false)
		{
			$this->favicon_handler = $page . '?' . $qs . '=';
		}
		else
		{
			$this->favicon_handler = '';
		}
	}

	/**
	 * Set the handler to enable the display of cached images.
	 *
	 * @access public
	 * @param str $page Web-accessible path to the handler_image.php file.
	 * @param str $qs The query string that the value should be passed to.
	 */
	function set_image_handler($page = false, $qs = 'i')
	{
		if ($page !== false)
		{
			$this->sanitize->set_image_handler($page . '?' . $qs . '=');
		}
		else
		{
			$this->image_handler = '';
		}
	}

	/**
	 * Set the limit for items returned per-feed with multifeeds.
	 *
	 * @access public
	 * @param integer $limit The maximum number of items to return.
	 */
	function set_item_limit($limit = 0)
	{
		$this->item_limit = (int) $limit;
	}

	function init()
	{
		// Check absolute bare minimum requirements.
		if ((function_exists('version_compare') && version_compare(PHP_VERSION, '4.3.0', '<')) || !extension_loaded('xml') || !extension_loaded('pcre'))
		{
			return false;
		}
		// Then check the xml extension is sane (i.e., libxml 2.7.x issue on PHP < 5.2.9 and libxml 2.7.0 to 2.7.2 on any version) if we don't have xmlreader.
		elseif (!extension_loaded('xmlreader'))
		{
			static $xml_is_sane = null;
			if ($xml_is_sane === null)
			{
				$parser_check = xml_parser_create();
				xml_parse_into_struct($parser_check, '<foo>&amp;</foo>', $values);
				xml_parser_free($parser_check);
				$xml_is_sane = isset($values[0]['value']);
			}
			if (!$xml_is_sane)
			{
				return false;
			}
		}

		if (isset($_GET[$this->javascript]))
		{
			SimplePie_Misc::output_javascript();
			exit;
		}

		// Pass whatever was set with config options over to the sanitizer.
		$this->sanitize->pass_cache_data($this->cache, $this->cache_location, $this->cache_name_function, $this->cache_class);
		$this->sanitize->pass_file_data($this->file_class, $this->timeout, $this->useragent, $this->force_fsockopen);

		if ($this->feed_url !== null || $this->raw_data !== null)
		{
			$this->data = array();
			$this->multifeed_objects = array();
			$cache = false;

			if ($this->feed_url !== null)
			{
				$parsed_feed_url = SimplePie_Misc::parse_url($this->feed_url);
				// Decide whether to enable caching
				if ($this->cache && $parsed_feed_url['scheme'] !== '')
				{
					$cache = call_user_func(array($this->cache_class, 'create'), $this->cache_location, call_user_func($this->cache_name_function, $this->feed_url), 'spc');
				}
				// If it's enabled and we don't want an XML dump, use the cache
				if ($cache && !$this->xml_dump)
				{
					// Load the Cache
					$this->data = $cache->load();
					if (!empty($this->data))
					{
						// If the cache is for an outdated build of SimplePie
						if (!isset($this->data['build']) || $this->data['build'] !== SIMPLEPIE_BUILD)
						{
							$cache->unlink();
							$this->data = array();
						}
						// If we've hit a collision just rerun it with caching disabled
						elseif (isset($this->data['url']) && $this->data['url'] !== $this->feed_url)
						{
							$cache = false;
							$this->data = array();
						}
						// If we've got a non feed_url stored (if the page isn't actually a feed, or is a redirect) use that URL.
						elseif (isset($this->data['feed_url']))
						{
							// If the autodiscovery cache is still valid use it.
							if ($cache->mtime() + $this->autodiscovery_cache_duration > time())
							{
								// Do not need to do feed autodiscovery yet.
								if ($this->data['feed_url'] === $this->data['url'])
								{
									$cache->unlink();
									$this->data = array();
								}
								else
								{
									$this->set_feed_url($this->data['feed_url']);
									return $this->init();
								}
							}
						}
						// Check if the cache has been updated
						elseif ($cache->mtime() + $this->cache_duration < time())
						{
							// If we have last-modified and/or etag set
							if (isset($this->data['headers']['last-modified']) || isset($this->data['headers']['etag']))
							{
								$headers = array();
								if (isset($this->data['headers']['last-modified']))
								{
									$headers['if-modified-since'] = $this->data['headers']['last-modified'];
								}
								if (isset($this->data['headers']['etag']))
								{
									$headers['if-none-match'] = '"' . $this->data['headers']['etag'] . '"';
								}
								$file =& new $this->file_class($this->feed_url, $this->timeout/10, 5, $headers, $this->useragent, $this->force_fsockopen);
								if ($file->success)
								{
									if ($file->status_code === 304)
									{
										$cache->touch();
										return true;
									}
									else
									{
										$headers = $file->headers;
									}
								}
								else
								{
									unset($file);
								}
							}
						}
						// If the cache is still valid, just return true
						else
						{
							return true;
						}
					}
					// If the cache is empty, delete it
					else
					{
						$cache->unlink();
						$this->data = array();
					}
				}
				// If we don't already have the file (it'll only exist if we've opened it to check if the cache has been modified), open it.
				if (!isset($file))
				{
					if (is_a($this->file, 'SimplePie_File') && $this->file->url === $this->feed_url)
					{
						$file =& $this->file;
					}
					else
					{
						$file =& new $this->file_class($this->feed_url, $this->timeout, 5, null, $this->useragent, $this->force_fsockopen);
					}
				}
				// If the file connection has an error, set SimplePie::error to that and quit
				if (!$file->success && !($file->method & SIMPLEPIE_FILE_SOURCE_REMOTE === 0 || ($file->status_code === 200 || $file->status_code > 206 && $file->status_code < 300)))
				{
					$this->error = $file->error;
					if (!empty($this->data))
					{
						return true;
					}
					else
					{
						return false;
					}
				}

				if (!$this->force_feed)
				{
					// Check if the supplied URL is a feed, if it isn't, look for it.
					$locate =& new $this->locator_class($file, $this->timeout, $this->useragent, $this->file_class, $this->max_checked_feeds, $this->content_type_sniffer_class);
					if (!$locate->is_feed($file))
					{
						// We need to unset this so that if SimplePie::set_file() has been called that object is untouched
						unset($file);
						if ($file = $locate->find($this->autodiscovery, $this->all_discovered_feeds))
						{
							if ($cache)
							{
								$this->data = array('url' => $this->feed_url, 'feed_url' => $file->url, 'build' => SIMPLEPIE_BUILD);
								if (!$cache->save($this))
								{
									trigger_error("$this->cache_location is not writeable. Make sure you've set the correct relative or absolute path, and that the location is server-writable.", E_USER_WARNING);
								}
								$cache = call_user_func(array($this->cache_class, 'create'), $this->cache_location, call_user_func($this->cache_name_function, $file->url), 'spc');
							}
							$this->feed_url = $file->url;
						}
						else
						{
							$this->error = "A feed could not be found at $this->feed_url. A feed with an invalid mime type may fall victim to this error, or " . SIMPLEPIE_NAME . " was unable to auto-discover it.. Use force_feed() if you are certain this URL is a real feed.";
							SimplePie_Misc::error($this->error, E_USER_NOTICE, __FILE__, __LINE__);
							return false;
						}
					}
					$locate = null;
				}

				$headers = $file->headers;
				$data = $file->body;
				$sniffer =& new $this->content_type_sniffer_class($file);
				$sniffed = $sniffer->get_type();
			}
			else
			{
				$data = $this->raw_data;
			}

			// Set up array of possible encodings
			$encodings = array();

			// First check to see if input has been overridden.
			if ($this->input_encoding !== false)
			{
				$encodings[] = $this->input_encoding;
			}

			$application_types = array('application/xml', 'application/xml-dtd', 'application/xml-external-parsed-entity');
			$text_types = array('text/xml', 'text/xml-external-parsed-entity');

			// RFC 3023 (only applies to sniffed content)
			if (isset($sniffed))
			{
				if (in_array($sniffed, $application_types) || substr($sniffed, 0, 12) === 'application/' && substr($sniffed, -4) === '+xml')
				{
					if (isset($headers['content-type']) && preg_match('/;\x20?charset=([^;]*)/i', $headers['content-type'], $charset))
					{
						$encodings[] = strtoupper($charset[1]);
					}
					$encodings = array_merge($encodings, SimplePie_Misc::xml_encoding($data));
					$encodings[] = 'UTF-8';
				}
				elseif (in_array($sniffed, $text_types) || substr($sniffed, 0, 5) === 'text/' && substr($sniffed, -4) === '+xml')
				{
					if (isset($headers['content-type']) && preg_match('/;\x20?charset=([^;]*)/i', $headers['content-type'], $charset))
					{
						$encodings[] = $charset[1];
					}
					$encodings[] = 'US-ASCII';
				}
				// Text MIME-type default
				elseif (substr($sniffed, 0, 5) === 'text/')
				{
					$encodings[] = 'US-ASCII';
				}
			}

			// Fallback to XML 1.0 Appendix F.1/UTF-8/ISO-8859-1
			$encodings = array_merge($encodings, SimplePie_Misc::xml_encoding($data));
			$encodings[] = 'UTF-8';
			$encodings[] = 'ISO-8859-1';

			// There's no point in trying an encoding twice
			$encodings = array_unique($encodings);

			// If we want the XML, just output that with the most likely encoding and quit
			if ($this->xml_dump)
			{
				header('Content-type: text/xml; charset=' . $encodings[0]);
				echo $data;
				exit;
			}

			// Loop through each possible encoding, till we return something, or run out of possibilities
			foreach ($encodings as $encoding)
			{
				// Change the encoding to UTF-8 (as we always use UTF-8 internally)
				if ($utf8_data = SimplePie_Misc::change_encoding($data, $encoding, 'UTF-8'))
				{
					// Create new parser
					$parser =& new $this->parser_class();

					// If it's parsed fine
					if ($parser->parse($utf8_data, 'UTF-8'))
					{
						$this->data = $parser->get_data();
						if ($this->get_type() & ~SIMPLEPIE_TYPE_NONE)
						{
							if (isset($headers))
							{
								$this->data['headers'] = $headers;
							}
							$this->data['build'] = SIMPLEPIE_BUILD;

							// Cache the file if caching is enabled
							if ($cache && !$cache->save($this))
							{
								trigger_error("$this->cache_location is not writeable. Make sure you've set the correct relative or absolute path, and that the location is server-writable.", E_USER_WARNING);
							}
							return true;
						}
						else
						{
							$this->error = "A feed could not be found at $this->feed_url. This does not appear to be a valid RSS or Atom feed.";
							SimplePie_Misc::error($this->error, E_USER_NOTICE, __FILE__, __LINE__);
							return false;
						}
					}
				}
			}
			if (isset($parser))
			{
				// We have an error, just set SimplePie_Misc::error to it and quit
				$this->error = sprintf('This XML document is invalid, likely due to invalid characters. XML error: %s at line %d, column %d', $parser->get_error_string(), $parser->get_current_line(), $parser->get_current_column());
			}
			else
			{
				$this->error = 'The data could not be converted to UTF-8. You MUST have either the iconv or mbstring extension installed. Upgrading to PHP 5.x (which includes iconv) is highly recommended.';
			}
			SimplePie_Misc::error($this->error, E_USER_NOTICE, __FILE__, __LINE__);
			return false;
		}
		elseif (!empty($this->multifeed_url))
		{
			$i = 0;
			$success = 0;
			$this->multifeed_objects = array();
			foreach ($this->multifeed_url as $url)
			{
				if (SIMPLEPIE_PHP5)
				{
					// This keyword needs to defy coding standards for PHP4 compatibility
					$this->multifeed_objects[$i] = clone($this);
				}
				else
				{
					$this->multifeed_objects[$i] = $this;
				}
				$this->multifeed_objects[$i]->set_feed_url($url);
				$success |= $this->multifeed_objects[$i]->init();
				$i++;
			}
			return (bool) $success;
		}
		else
		{
			return false;
		}
	}

	/**
	 * Return the error message for the occured error
	 *
	 * @access public
	 * @return string Error message
	 */
	function error()
	{
		return $this->error;
	}

	function get_encoding()
	{
		return $this->sanitize->output_encoding;
	}

	function handle_content_type($mime = 'text/html')
	{
		if (!headers_sent())
		{
			$header = "Content-type: $mime;";
			if ($this->get_encoding())
			{
				$header .= ' charset=' . $this->get_encoding();
			}
			else
			{
				$header .= ' charset=UTF-8';
			}
			header($header);
		}
	}

	function get_type()
	{
		if (!isset($this->data['type']))
		{
			$this->data['type'] = SIMPLEPIE_TYPE_ALL;
			if (isset($this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['feed']))
			{
				$this->data['type'] &= SIMPLEPIE_TYPE_ATOM_10;
			}
			elseif (isset($this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['feed']))
			{
				$this->data['type'] &= SIMPLEPIE_TYPE_ATOM_03;
			}
			elseif (isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF']))
			{
				if (isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_10]['channel'])
				|| isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_10]['image'])
				|| isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_10]['item'])
				|| isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_10]['textinput']))
				{
					$this->data['type'] &= SIMPLEPIE_TYPE_RSS_10;
				}
				if (isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_090]['channel'])
				|| isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_090]['image'])
				|| isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_090]['item'])
				|| isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_090]['textinput']))
				{
					$this->data['type'] &= SIMPLEPIE_TYPE_RSS_090;
				}
			}
			elseif (isset($this->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss']))
			{
				$this->data['type'] &= SIMPLEPIE_TYPE_RSS_ALL;
				if (isset($this->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0]['attribs']['']['version']))
				{
					switch (trim($this->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0]['attribs']['']['version']))
					{
						case '0.91':
							$this->data['type'] &= SIMPLEPIE_TYPE_RSS_091;
							if (isset($this->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_20]['skiphours']['hour'][0]['data']))
							{
								switch (trim($this->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_20]['skiphours']['hour'][0]['data']))
								{
									case '0':
										$this->data['type'] &= SIMPLEPIE_TYPE_RSS_091_NETSCAPE;
										break;

									case '24':
										$this->data['type'] &= SIMPLEPIE_TYPE_RSS_091_USERLAND;
										break;
								}
							}
							break;

						case '0.92':
							$this->data['type'] &= SIMPLEPIE_TYPE_RSS_092;
							break;

						case '0.93':
							$this->data['type'] &= SIMPLEPIE_TYPE_RSS_093;
							break;

						case '0.94':
							$this->data['type'] &= SIMPLEPIE_TYPE_RSS_094;
							break;

						case '2.0':
							$this->data['type'] &= SIMPLEPIE_TYPE_RSS_20;
							break;
					}
				}
			}
			else
			{
				$this->data['type'] = SIMPLEPIE_TYPE_NONE;
			}
		}
		return $this->data['type'];
	}

	/**
	 * Returns the URL for the favicon of the feed's website.
	 *
	 * @todo Cache atom:icon
	 * @access public
	 * @since 1.0
	 */
	function get_favicon()
	{
		if ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'icon'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
		}
		elseif (($url = $this->get_link()) !== null && preg_match('/^http(s)?:\/\//i', $url))
		{
			$favicon = SimplePie_Misc::absolutize_url('/favicon.ico', $url);

			if ($this->cache && $this->favicon_handler)
			{
				$favicon_filename = call_user_func($this->cache_name_function, $favicon);
				$cache = call_user_func(array($this->cache_class, 'create'), $this->cache_location, $favicon_filename, 'spi');

				if ($cache->load())
				{
					return $this->sanitize($this->favicon_handler . $favicon_filename, SIMPLEPIE_CONSTRUCT_IRI);
				}
				else
				{
					$file =& new $this->file_class($favicon, $this->timeout / 10, 5, array('X-FORWARDED-FOR' => $_SERVER['REMOTE_ADDR']), $this->useragent, $this->force_fsockopen);

					if ($file->success && ($file->method & SIMPLEPIE_FILE_SOURCE_REMOTE === 0 || ($file->status_code === 200 || $file->status_code > 206 && $file->status_code < 300)) && strlen($file->body) > 0)
					{
						$sniffer =& new $this->content_type_sniffer_class($file);
						if (substr($sniffer->get_type(), 0, 6) === 'image/')
						{
							if ($cache->save(array('headers' => $file->headers, 'body' => $file->body)))
							{
								return $this->sanitize($this->favicon_handler . $favicon_filename, SIMPLEPIE_CONSTRUCT_IRI);
							}
							else
							{
								trigger_error("$cache->name is not writeable. Make sure you've set the correct relative or absolute path, and that the location is server-writable.", E_USER_WARNING);
								return $this->sanitize($favicon, SIMPLEPIE_CONSTRUCT_IRI);
							}
						}
						// not an image
						else
						{
							return false;
						}
					}
				}
			}
			else
			{
				return $this->sanitize($favicon, SIMPLEPIE_CONSTRUCT_IRI);
			}
		}
		return false;
	}

	/**
	 * @todo If we have a perm redirect we should return the new URL
	 * @todo When we make the above change, let's support <itunes:new-feed-url> as well
	 * @todo Also, |atom:link|@rel=self
	 */
	function subscribe_url()
	{
		if ($this->feed_url !== null)
		{
			return $this->sanitize($this->feed_url, SIMPLEPIE_CONSTRUCT_IRI);
		}
		else
		{
			return null;
		}
	}

	function subscribe_feed()
	{
		if ($this->feed_url !== null)
		{
			return $this->sanitize(SimplePie_Misc::fix_protocol($this->feed_url, 2), SIMPLEPIE_CONSTRUCT_IRI);
		}
		else
		{
			return null;
		}
	}

	function subscribe_outlook()
	{
		if ($this->feed_url !== null)
		{
			return $this->sanitize('outlook' . SimplePie_Misc::fix_protocol($this->feed_url, 2), SIMPLEPIE_CONSTRUCT_IRI);
		}
		else
		{
			return null;
		}
	}

	function subscribe_podcast()
	{
		if ($this->feed_url !== null)
		{
			return $this->sanitize(SimplePie_Misc::fix_protocol($this->feed_url, 3), SIMPLEPIE_CONSTRUCT_IRI);
		}
		else
		{
			return null;
		}
	}

	function subscribe_itunes()
	{
		if ($this->feed_url !== null)
		{
			return $this->sanitize(SimplePie_Misc::fix_protocol($this->feed_url, 4), SIMPLEPIE_CONSTRUCT_IRI);
		}
		else
		{
			return null;
		}
	}

	/**
	 * Creates the subscribe_* methods' return data
	 *
	 * @access private
	 * @param string $feed_url String to prefix to the feed URL
	 * @param string $site_url String to prefix to the site URL (and
	 * suffix to the feed URL)
	 * @return mixed URL if feed exists, false otherwise
	 */
	function subscribe_service($feed_url, $site_url = null)
	{
		if ($this->subscribe_url())
		{
			$return = $feed_url . rawurlencode($this->feed_url);
			if ($site_url !== null && $this->get_link() !== null)
			{
				$return .= $site_url . rawurlencode($this->get_link());
			}
			return $this->sanitize($return, SIMPLEPIE_CONSTRUCT_IRI);
		}
		else
		{
			return null;
		}
	}

	function subscribe_aol()
	{
		return $this->subscribe_service('http://feeds.my.aol.com/add.jsp?url=');
	}

	function subscribe_bloglines()
	{
		return $this->subscribe_service('http://www.bloglines.com/sub/');
	}

	function subscribe_eskobo()
	{
		return $this->subscribe_service('http://www.eskobo.com/?AddToMyPage=');
	}

	function subscribe_feedfeeds()
	{
		return $this->subscribe_service('http://www.feedfeeds.com/add?feed=');
	}

	function subscribe_feedster()
	{
		return $this->subscribe_service('http://www.feedster.com/myfeedster.php?action=addrss&confirm=no&rssurl=');
	}

	function subscribe_google()
	{
		return $this->subscribe_service('http://fusion.google.com/add?feedurl=');
	}

	function subscribe_gritwire()
	{
		return $this->subscribe_service('http://my.gritwire.com/feeds/addExternalFeed.aspx?FeedUrl=');
	}

	function subscribe_msn()
	{
		return $this->subscribe_service('http://my.msn.com/addtomymsn.armx?id=rss&ut=', '&ru=');
	}

	function subscribe_netvibes()
	{
		return $this->subscribe_service('http://www.netvibes.com/subscribe.php?url=');
	}

	function subscribe_newsburst()
	{
		return $this->subscribe_service('http://www.newsburst.com/Source/?add=');
	}

	function subscribe_newsgator()
	{
		return $this->subscribe_service('http://www.newsgator.com/ngs/subscriber/subext.aspx?url=');
	}

	function subscribe_odeo()
	{
		return $this->subscribe_service('http://www.odeo.com/listen/subscribe?feed=');
	}

	function subscribe_podnova()
	{
		return $this->subscribe_service('http://www.podnova.com/index_your_podcasts.srf?action=add&url=');
	}

	function subscribe_rojo()
	{
		return $this->subscribe_service('http://www.rojo.com/add-subscription?resource=');
	}

	function subscribe_yahoo()
	{
		return $this->subscribe_service('http://add.my.yahoo.com/rss?url=');
	}

	function get_feed_tags($namespace, $tag)
	{
		$type = $this->get_type();
		if ($type & SIMPLEPIE_TYPE_ATOM_10)
		{
			if (isset($this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['feed'][0]['child'][$namespace][$tag]))
			{
				return $this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['feed'][0]['child'][$namespace][$tag];
			}
		}
		if ($type & SIMPLEPIE_TYPE_ATOM_03)
		{
			if (isset($this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['feed'][0]['child'][$namespace][$tag]))
			{
				return $this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['feed'][0]['child'][$namespace][$tag];
			}
		}
		if ($type & SIMPLEPIE_TYPE_RSS_RDF)
		{
			if (isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][$namespace][$tag]))
			{
				return $this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][$namespace][$tag];
			}
		}
		if ($type & SIMPLEPIE_TYPE_RSS_SYNDICATION)
		{
			if (isset($this->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0]['child'][$namespace][$tag]))
			{
				return $this->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0]['child'][$namespace][$tag];
			}
		}
		return null;
	}

	function get_channel_tags($namespace, $tag)
	{
		$type = $this->get_type();
		if ($type & SIMPLEPIE_TYPE_ATOM_ALL)
		{
			if ($return = $this->get_feed_tags($namespace, $tag))
			{
				return $return;
			}
		}
		if ($type & SIMPLEPIE_TYPE_RSS_10)
		{
			if ($channel = $this->get_feed_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'channel'))
			{
				if (isset($channel[0]['child'][$namespace][$tag]))
				{
					return $channel[0]['child'][$namespace][$tag];
				}
			}
		}
		if ($type & SIMPLEPIE_TYPE_RSS_090)
		{
			if ($channel = $this->get_feed_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'channel'))
			{
				if (isset($channel[0]['child'][$namespace][$tag]))
				{
					return $channel[0]['child'][$namespace][$tag];
				}
			}
		}
		if ($type & SIMPLEPIE_TYPE_RSS_SYNDICATION)
		{
			if ($channel = $this->get_feed_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'channel'))
			{
				if (isset($channel[0]['child'][$namespace][$tag]))
				{
					return $channel[0]['child'][$namespace][$tag];
				}
			}
		}
		return null;
	}

	function get_image_tags($namespace, $tag)
	{
		$type = $this->get_type();
		if ($type & SIMPLEPIE_TYPE_RSS_10)
		{
			if ($image = $this->get_feed_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'image'))
			{
				if (isset($image[0]['child'][$namespace][$tag]))
				{
					return $image[0]['child'][$namespace][$tag];
				}
			}
		}
		if ($type & SIMPLEPIE_TYPE_RSS_090)
		{
			if ($image = $this->get_feed_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'image'))
			{
				if (isset($image[0]['child'][$namespace][$tag]))
				{
					return $image[0]['child'][$namespace][$tag];
				}
			}
		}
		if ($type & SIMPLEPIE_TYPE_RSS_SYNDICATION)
		{
			if ($image = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'image'))
			{
				if (isset($image[0]['child'][$namespace][$tag]))
				{
					return $image[0]['child'][$namespace][$tag];
				}
			}
		}
		return null;
	}

	function get_base($element = array())
	{
		if (!($this->get_type() & SIMPLEPIE_TYPE_RSS_SYNDICATION) && !empty($element['xml_base_explicit']) && isset($element['xml_base']))
		{
			return $element['xml_base'];
		}
		elseif ($this->get_link() !== null)
		{
			return $this->get_link();
		}
		else
		{
			return $this->subscribe_url();
		}
	}

	function sanitize($data, $type, $base = '')
	{
		return $this->sanitize->sanitize($data, $type, $base);
	}

	function get_title()
	{
		if ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'title'))
		{
			return $this->sanitize($return[0]['data'], SimplePie_Misc::atom_10_construct_type($return[0]['attribs']), $this->get_base($return[0]));
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'title'))
		{
			return $this->sanitize($return[0]['data'], SimplePie_Misc::atom_03_construct_type($return[0]['attribs']), $this->get_base($return[0]));
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'title'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'title'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'title'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_11, 'title'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_10, 'title'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		else
		{
			return null;
		}
	}

	function get_category($key = 0)
	{
		$categories = $this->get_categories();
		if (isset($categories[$key]))
		{
			return $categories[$key];
		}
		else
		{
			return null;
		}
	}

	function get_categories()
	{
		$categories = array();

		foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'category') as $category)
		{
			$term = null;
			$scheme = null;
			$label = null;
			if (isset($category['attribs']['']['term']))
			{
				$term = $this->sanitize($category['attribs']['']['term'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if (isset($category['attribs']['']['scheme']))
			{
				$scheme = $this->sanitize($category['attribs']['']['scheme'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if (isset($category['attribs']['']['label']))
			{
				$label = $this->sanitize($category['attribs']['']['label'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			$categories[] =& new $this->category_class($term, $scheme, $label);
		}
		foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'category') as $category)
		{
			// This is really the label, but keep this as the term also for BC.
			// Label will also work on retrieving because that falls back to term.
			$term = $this->sanitize($category['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			if (isset($category['attribs']['']['domain']))
			{
				$scheme = $this->sanitize($category['attribs']['']['domain'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			else
			{
				$scheme = null;
			}
			$categories[] =& new $this->category_class($term, $scheme, null);
		}
		foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_11, 'subject') as $category)
		{
			$categories[] =& new $this->category_class($this->sanitize($category['data'], SIMPLEPIE_CONSTRUCT_TEXT), null, null);
		}
		foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_10, 'subject') as $category)
		{
			$categories[] =& new $this->category_class($this->sanitize($category['data'], SIMPLEPIE_CONSTRUCT_TEXT), null, null);
		}

		if (!empty($categories))
		{
			return SimplePie_Misc::array_unique($categories);
		}
		else
		{
			return null;
		}
	}

	function get_author($key = 0)
	{
		$authors = $this->get_authors();
		if (isset($authors[$key]))
		{
			return $authors[$key];
		}
		else
		{
			return null;
		}
	}

	function get_authors()
	{
		$authors = array();
		foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'author') as $author)
		{
			$name = null;
			$uri = null;
			$email = null;
			if (isset($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data']))
			{
				$name = $this->sanitize($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if (isset($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data']))
			{
				$uri = $this->sanitize($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]));
			}
			if (isset($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['email'][0]['data']))
			{
				$email = $this->sanitize($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['email'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if ($name !== null || $email !== null || $uri !== null)
			{
				$authors[] =& new $this->author_class($name, $uri, $email);
			}
		}
		if ($author = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'author'))
		{
			$name = null;
			$url = null;
			$email = null;
			if (isset($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['name'][0]['data']))
			{
				$name = $this->sanitize($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['name'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if (isset($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]['data']))
			{
				$url = $this->sanitize($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]));
			}
			if (isset($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['email'][0]['data']))
			{
				$email = $this->sanitize($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['email'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if ($name !== null || $email !== null || $url !== null)
			{
				$authors[] =& new $this->author_class($name, $url, $email);
			}
		}
		foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_11, 'creator') as $author)
		{
			$authors[] =& new $this->author_class($this->sanitize($author['data'], SIMPLEPIE_CONSTRUCT_TEXT), null, null);
		}
		foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_10, 'creator') as $author)
		{
			$authors[] =& new $this->author_class($this->sanitize($author['data'], SIMPLEPIE_CONSTRUCT_TEXT), null, null);
		}
		foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'author') as $author)
		{
			$authors[] =& new $this->author_class($this->sanitize($author['data'], SIMPLEPIE_CONSTRUCT_TEXT), null, null);
		}

		if (!empty($authors))
		{
			return SimplePie_Misc::array_unique($authors);
		}
		else
		{
			return null;
		}
	}

	function get_contributor($key = 0)
	{
		$contributors = $this->get_contributors();
		if (isset($contributors[$key]))
		{
			return $contributors[$key];
		}
		else
		{
			return null;
		}
	}

	function get_contributors()
	{
		$contributors = array();
		foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'contributor') as $contributor)
		{
			$name = null;
			$uri = null;
			$email = null;
			if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data']))
			{
				$name = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data']))
			{
				$uri = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]));
			}
			if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['email'][0]['data']))
			{
				$email = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['email'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if ($name !== null || $email !== null || $uri !== null)
			{
				$contributors[] =& new $this->author_class($name, $uri, $email);
			}
		}
		foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'contributor') as $contributor)
		{
			$name = null;
			$url = null;
			$email = null;
			if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['name'][0]['data']))
			{
				$name = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['name'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]['data']))
			{
				$url = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]));
			}
			if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['email'][0]['data']))
			{
				$email = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['email'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if ($name !== null || $email !== null || $url !== null)
			{
				$contributors[] =& new $this->author_class($name, $url, $email);
			}
		}

		if (!empty($contributors))
		{
			return SimplePie_Misc::array_unique($contributors);
		}
		else
		{
			return null;
		}
	}

	function get_link($key = 0, $rel = 'alternate')
	{
		$links = $this->get_links($rel);
		if (isset($links[$key]))
		{
			return $links[$key];
		}
		else
		{
			return null;
		}
	}

	/**
	 * Added for parity between the parent-level and the item/entry-level.
	 */
	function get_permalink()
	{
		return $this->get_link(0);
	}

	function get_links($rel = 'alternate')
	{
		if (!isset($this->data['links']))
		{
			$this->data['links'] = array();
			if ($links = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'link'))
			{
				foreach ($links as $link)
				{
					if (isset($link['attribs']['']['href']))
					{
						$link_rel = (isset($link['attribs']['']['rel'])) ? $link['attribs']['']['rel'] : 'alternate';
						$this->data['links'][$link_rel][] = $this->sanitize($link['attribs']['']['href'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($link));
					}
				}
			}
			if ($links = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'link'))
			{
				foreach ($links as $link)
				{
					if (isset($link['attribs']['']['href']))
					{
						$link_rel = (isset($link['attribs']['']['rel'])) ? $link['attribs']['']['rel'] : 'alternate';
						$this->data['links'][$link_rel][] = $this->sanitize($link['attribs']['']['href'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($link));

					}
				}
			}
			if ($links = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'link'))
			{
				$this->data['links']['alternate'][] = $this->sanitize($links[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($links[0]));
			}
			if ($links = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'link'))
			{
				$this->data['links']['alternate'][] = $this->sanitize($links[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($links[0]));
			}
			if ($links = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'link'))
			{
				$this->data['links']['alternate'][] = $this->sanitize($links[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($links[0]));
			}

			$keys = array_keys($this->data['links']);
			foreach ($keys as $key)
			{
				if (SimplePie_Misc::is_isegment_nz_nc($key))
				{
					if (isset($this->data['links'][SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY . $key]))
					{
						$this->data['links'][SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY . $key] = array_merge($this->data['links'][$key], $this->data['links'][SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY . $key]);
						$this->data['links'][$key] =& $this->data['links'][SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY . $key];
					}
					else
					{
						$this->data['links'][SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY . $key] =& $this->data['links'][$key];
					}
				}
				elseif (substr($key, 0, 41) === SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY)
				{
					$this->data['links'][substr($key, 41)] =& $this->data['links'][$key];
				}
				$this->data['links'][$key] = array_unique($this->data['links'][$key]);
			}
		}

		if (isset($this->data['links'][$rel]))
		{
			return $this->data['links'][$rel];
		}
		else
		{
			return null;
		}
	}

	function get_all_discovered_feeds()
	{
		return $this->all_discovered_feeds;
	}

	function get_description()
	{
		if ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'subtitle'))
		{
			return $this->sanitize($return[0]['data'], SimplePie_Misc::atom_10_construct_type($return[0]['attribs']), $this->get_base($return[0]));
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'tagline'))
		{
			return $this->sanitize($return[0]['data'], SimplePie_Misc::atom_03_construct_type($return[0]['attribs']), $this->get_base($return[0]));
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'description'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'description'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'description'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_HTML, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_11, 'description'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_10, 'description'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'summary'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_HTML, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'subtitle'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_HTML, $this->get_base($return[0]));
		}
		else
		{
			return null;
		}
	}

	function get_copyright()
	{
		if ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'rights'))
		{
			return $this->sanitize($return[0]['data'], SimplePie_Misc::atom_10_construct_type($return[0]['attribs']), $this->get_base($return[0]));
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'copyright'))
		{
			return $this->sanitize($return[0]['data'], SimplePie_Misc::atom_03_construct_type($return[0]['attribs']), $this->get_base($return[0]));
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'copyright'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_11, 'rights'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_10, 'rights'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		else
		{
			return null;
		}
	}

	function get_language()
	{
		if ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'language'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_11, 'language'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_10, 'language'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif (isset($this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['feed'][0]['xml_lang']))
		{
			return $this->sanitize($this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['feed'][0]['xml_lang'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif (isset($this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['feed'][0]['xml_lang']))
		{
			return $this->sanitize($this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['feed'][0]['xml_lang'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif (isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['xml_lang']))
		{
			return $this->sanitize($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['xml_lang'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif (isset($this->data['headers']['content-language']))
		{
			return $this->sanitize($this->data['headers']['content-language'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		else
		{
			return null;
		}
	}

	function get_latitude()
	{
		
		if ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_W3C_BASIC_GEO, 'lat'))
		{
			return (float) $return[0]['data'];
		}
		elseif (($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_GEORSS, 'point')) && preg_match('/^((?:-)?[0-9]+(?:\.[0-9]+)) ((?:-)?[0-9]+(?:\.[0-9]+))$/', trim($return[0]['data']), $match))
		{
			return (float) $match[1];
		}
		else
		{
			return null;
		}
	}

	function get_longitude()
	{
		if ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_W3C_BASIC_GEO, 'long'))
		{
			return (float) $return[0]['data'];
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_W3C_BASIC_GEO, 'lon'))
		{
			return (float) $return[0]['data'];
		}
		elseif (($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_GEORSS, 'point')) && preg_match('/^((?:-)?[0-9]+(?:\.[0-9]+)) ((?:-)?[0-9]+(?:\.[0-9]+))$/', trim($return[0]['data']), $match))
		{
			return (float) $match[2];
		}
		else
		{
			return null;
		}
	}

	function get_image_title()
	{
		if ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'title'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'title'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'title'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_DC_11, 'title'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_DC_10, 'title'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		else
		{
			return null;
		}
	}

	function get_image_url()
	{
		if ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'image'))
		{
			return $this->sanitize($return[0]['attribs']['']['href'], SIMPLEPIE_CONSTRUCT_IRI);
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'logo'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'icon'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'url'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'url'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'url'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
		}
		else
		{
			return null;
		}
	}

	function get_image_link()
	{
		if ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'link'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'link'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'link'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
		}
		else
		{
			return null;
		}
	}

	function get_image_width()
	{
		if ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'width'))
		{
			return round($return[0]['data']);
		}
		elseif ($this->get_type() & SIMPLEPIE_TYPE_RSS_SYNDICATION && $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'url'))
		{
			return 88.0;
		}
		else
		{
			return null;
		}
	}

	function get_image_height()
	{
		if ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'height'))
		{
			return round($return[0]['data']);
		}
		elseif ($this->get_type() & SIMPLEPIE_TYPE_RSS_SYNDICATION && $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'url'))
		{
			return 31.0;
		}
		else
		{
			return null;
		}
	}

	function get_item_quantity($max = 0)
	{
		$max = (int) $max;
		$qty = count($this->get_items());
		if ($max === 0)
		{
			return $qty;
		}
		else
		{
			return ($qty > $max) ? $max : $qty;
		}
	}

	function get_item($key = 0)
	{
		$items = $this->get_items();
		if (isset($items[$key]))
		{
			return $items[$key];
		}
		else
		{
			return null;
		}
	}

	function get_items($start = 0, $end = 0)
	{
		if (!isset($this->data['items']))
		{
			if (!empty($this->multifeed_objects))
			{
				$this->data['items'] = SimplePie::merge_items($this->multifeed_objects, $start, $end, $this->item_limit);
			}
			else
			{
				$this->data['items'] = array();
				if ($items = $this->get_feed_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'entry'))
				{
					$keys = array_keys($items);
					foreach ($keys as $key)
					{
						$this->data['items'][] =& new $this->item_class($this, $items[$key]);
					}
				}
				if ($items = $this->get_feed_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'entry'))
				{
					$keys = array_keys($items);
					foreach ($keys as $key)
					{
						$this->data['items'][] =& new $this->item_class($this, $items[$key]);
					}
				}
				if ($items = $this->get_feed_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'item'))
				{
					$keys = array_keys($items);
					foreach ($keys as $key)
					{
						$this->data['items'][] =& new $this->item_class($this, $items[$key]);
					}
				}
				if ($items = $this->get_feed_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'item'))
				{
					$keys = array_keys($items);
					foreach ($keys as $key)
					{
						$this->data['items'][] =& new $this->item_class($this, $items[$key]);
					}
				}
				if ($items = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'item'))
				{
					$keys = array_keys($items);
					foreach ($keys as $key)
					{
						$this->data['items'][] =& new $this->item_class($this, $items[$key]);
					}
				}
			}
		}

		if (!empty($this->data['items']))
		{
			// If we want to order it by date, check if all items have a date, and then sort it
			if ($this->order_by_date && empty($this->multifeed_objects))
			{
				if (!isset($this->data['ordered_items']))
				{
					$do_sort = true;
					foreach ($this->data['items'] as $item)
					{
						if (!$item->get_date('U'))
						{
							$do_sort = false;
							break;
						}
					}
					$item = null;
					$this->data['ordered_items'] = $this->data['items'];
					if ($do_sort)
					{
						usort($this->data['ordered_items'], array(&$this, 'sort_items'));
					}
				}
				$items = $this->data['ordered_items'];
			}
			else
			{
				$items = $this->data['items'];
			}

			// Slice the data as desired
			if ($end === 0)
			{
				return array_slice($items, $start);
			}
			else
			{
				return array_slice($items, $start, $end);
			}
		}
		else
		{
			return array();
		}
	}

	/**
	 * @static
	 */
	function sort_items($a, $b)
	{
		return $a->get_date('U') <= $b->get_date('U');
	}

	/**
	 * @static
	 */
	function merge_items($urls, $start = 0, $end = 0, $limit = 0)
	{
		if (is_array($urls) && sizeof($urls) > 0)
		{
			$items = array();
			foreach ($urls as $arg)
			{
				if (is_a($arg, 'SimplePie'))
				{
					$items = array_merge($items, $arg->get_items(0, $limit));
				}
				else
				{
					trigger_error('Arguments must be SimplePie objects', E_USER_WARNING);
				}
			}

			$do_sort = true;
			foreach ($items as $item)
			{
				if (!$item->get_date('U'))
				{
					$do_sort = false;
					break;
				}
			}
			$item = null;
			if ($do_sort)
			{
				usort($items, array('SimplePie', 'sort_items'));
			}

			if ($end === 0)
			{
				return array_slice($items, $start);
			}
			else
			{
				return array_slice($items, $start, $end);
			}
		}
		else
		{
			trigger_error('Cannot merge zero SimplePie objects', E_USER_WARNING);
			return array();
		}
	}
}

class SimplePie_Item
{
	var $feed;
	var $data = array();

	function SimplePie_Item($feed, $data)
	{
		$this->feed = $feed;
		$this->data = $data;
	}

	function __toString()
	{
		return md5(serialize($this->data));
	}

	/**
	 * Remove items that link back to this before destroying this object
	 */
	function __destruct()
	{
		if ((version_compare(PHP_VERSION, '5.3', '<') || !gc_enabled()) && !ini_get('zend.ze1_compatibility_mode'))
		{
			unset($this->feed);
		}
	}

	function get_item_tags($namespace, $tag)
	{
		if (isset($this->data['child'][$namespace][$tag]))
		{
			return $this->data['child'][$namespace][$tag];
		}
		else
		{
			return null;
		}
	}

	function get_base($element = array())
	{
		return $this->feed->get_base($element);
	}

	function sanitize($data, $type, $base = '')
	{
		return $this->feed->sanitize($data, $type, $base);
	}

	function get_feed()
	{
		return $this->feed;
	}

	function get_id($hash = false)
	{
		if (!$hash)
		{
			if ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'id'))
			{
				return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'id'))
			{
				return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'guid'))
			{
				return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_DC_11, 'identifier'))
			{
				return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_DC_10, 'identifier'))
			{
				return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			elseif (($return = $this->get_permalink()) !== null)
			{
				return $return;
			}
			elseif (($return = $this->get_title()) !== null)
			{
				return $return;
			}
		}
		if ($this->get_permalink() !== null || $this->get_title() !== null)
		{
			return md5($this->get_permalink() . $this->get_title());
		}
		else
		{
			return md5(serialize($this->data));
		}
	}

	function get_title()
	{
		if (!isset($this->data['title']))
		{
			if ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'title'))
			{
				$this->data['title'] = $this->sanitize($return[0]['data'], SimplePie_Misc::atom_10_construct_type($return[0]['attribs']), $this->get_base($return[0]));
			}
			elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'title'))
			{
				$this->data['title'] = $this->sanitize($return[0]['data'], SimplePie_Misc::atom_03_construct_type($return[0]['attribs']), $this->get_base($return[0]));
			}
			elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'title'))
			{
				$this->data['title'] = $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
			}
			elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'title'))
			{
				$this->data['title'] = $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
			}
			elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'title'))
			{
				$this->data['title'] = $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
			}
			elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_DC_11, 'title'))
			{
				$this->data['title'] = $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_DC_10, 'title'))
			{
				$this->data['title'] = $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			else
			{
				$this->data['title'] = null;
			}
		}
		return $this->data['title'];
	}

	function get_description($description_only = false)
	{
		if ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'summary'))
		{
			return $this->sanitize($return[0]['data'], SimplePie_Misc::atom_10_construct_type($return[0]['attribs']), $this->get_base($return[0]));
		}
		elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'summary'))
		{
			return $this->sanitize($return[0]['data'], SimplePie_Misc::atom_03_construct_type($return[0]['attribs']), $this->get_base($return[0]));
		}
		elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'description'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'description'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_HTML, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_DC_11, 'description'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_DC_10, 'description'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'summary'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_HTML, $this->get_base($return[0]));
		}
		elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'subtitle'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'description'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_HTML);
		}

		elseif (!$description_only)
		{
			return $this->get_content(true);
		}
		else
		{
			return null;
		}
	}

	function get_content($content_only = false)
	{
		if ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'content'))
		{
			return $this->sanitize($return[0]['data'], SimplePie_Misc::atom_10_content_construct_type($return[0]['attribs']), $this->get_base($return[0]));
		}
		elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'content'))
		{
			return $this->sanitize($return[0]['data'], SimplePie_Misc::atom_03_construct_type($return[0]['attribs']), $this->get_base($return[0]));
		}
		elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_RSS_10_MODULES_CONTENT, 'encoded'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_HTML, $this->get_base($return[0]));
		}
		elseif (!$content_only)
		{
			return $this->get_description(true);
		}
		else
		{
			return null;
		}
	}

	function get_category($key = 0)
	{
		$categories = $this->get_categories();
		if (isset($categories[$key]))
		{
			return $categories[$key];
		}
		else
		{
			return null;
		}
	}

	function get_categories()
	{
		$categories = array();

		foreach ((array) $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'category') as $category)
		{
			$term = null;
			$scheme = null;
			$label = null;
			if (isset($category['attribs']['']['term']))
			{
				$term = $this->sanitize($category['attribs']['']['term'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if (isset($category['attribs']['']['scheme']))
			{
				$scheme = $this->sanitize($category['attribs']['']['scheme'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if (isset($category['attribs']['']['label']))
			{
				$label = $this->sanitize($category['attribs']['']['label'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			$categories[] =& new $this->feed->category_class($term, $scheme, $label);
		}
		foreach ((array) $this->get_item_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'category') as $category)
		{
			// This is really the label, but keep this as the term also for BC.
			// Label will also work on retrieving because that falls back to term.
			$term = $this->sanitize($category['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			if (isset($category['attribs']['']['domain']))
			{
				$scheme = $this->sanitize($category['attribs']['']['domain'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			else
			{
				$scheme = null;
			}
			$categories[] =& new $this->feed->category_class($term, $scheme, null);
		}
		foreach ((array) $this->get_item_tags(SIMPLEPIE_NAMESPACE_DC_11, 'subject') as $category)
		{
			$categories[] =& new $this->feed->category_class($this->sanitize($category['data'], SIMPLEPIE_CONSTRUCT_TEXT), null, null);
		}
		foreach ((array) $this->get_item_tags(SIMPLEPIE_NAMESPACE_DC_10, 'subject') as $category)
		{
			$categories[] =& new $this->feed->category_class($this->sanitize($category['data'], SIMPLEPIE_CONSTRUCT_TEXT), null, null);
		}

		if (!empty($categories))
		{
			return SimplePie_Misc::array_unique($categories);
		}
		else
		{
			return null;
		}
	}

	function get_author($key = 0)
	{
		$authors = $this->get_authors();
		if (isset($authors[$key]))
		{
			return $authors[$key];
		}
		else
		{
			return null;
		}
	}

	function get_contributor($key = 0)
	{
		$contributors = $this->get_contributors();
		if (isset($contributors[$key]))
		{
			return $contributors[$key];
		}
		else
		{
			return null;
		}
	}

	function get_contributors()
	{
		$contributors = array();
		foreach ((array) $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'contributor') as $contributor)
		{
			$name = null;
			$uri = null;
			$email = null;
			if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data']))
			{
				$name = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data']))
			{
				$uri = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]));
			}
			if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['email'][0]['data']))
			{
				$email = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['email'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if ($name !== null || $email !== null || $uri !== null)
			{
				$contributors[] =& new $this->feed->author_class($name, $uri, $email);
			}
		}
		foreach ((array) $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'contributor') as $contributor)
		{
			$name = null;
			$url = null;
			$email = null;
			if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['name'][0]['data']))
			{
				$name = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['name'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]['data']))
			{
				$url = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]));
			}
			if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['email'][0]['data']))
			{
				$email = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['email'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if ($name !== null || $email !== null || $url !== null)
			{
				$contributors[] =& new $this->feed->author_class($name, $url, $email);
			}
		}

		if (!empty($contributors))
		{
			return SimplePie_Misc::array_unique($contributors);
		}
		else
		{
			return null;
		}
	}

	function get_authors()
	{
		$authors = array();
		foreach ((array) $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'author') as $author)
		{
			$name = null;
			$uri = null;
			$email = null;
			if (isset($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data']))
			{
				$name = $this->sanitize($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if (isset($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data']))
			{
				$uri = $this->sanitize($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]));
			}
			if (isset($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['email'][0]['data']))
			{
				$email = $this->sanitize($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['email'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if ($name !== null || $email !== null || $uri !== null)
			{
				$authors[] =& new $this->feed->author_class($name, $uri, $email);
			}
		}
		if ($author = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'author'))
		{
			$name = null;
			$url = null;
			$email = null;
			if (isset($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['name'][0]['data']))
			{
				$name = $this->sanitize($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['name'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if (isset($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]['data']))
			{
				$url = $this->sanitize($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]));
			}
			if (isset($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['email'][0]['data']))
			{
				$email = $this->sanitize($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['email'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if ($name !== null || $email !== null || $url !== null)
			{
				$authors[] =& new $this->feed->author_class($name, $url, $email);
			}
		}
		if ($author = $this->get_item_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'author'))
		{
			$authors[] =& new $this->feed->author_class(null, null, $this->sanitize($author[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT));
		}
		foreach ((array) $this->get_item_tags(SIMPLEPIE_NAMESPACE_DC_11, 'creator') as $author)
		{
			$authors[] =& new $this->feed->author_class($this->sanitize($author['data'], SIMPLEPIE_CONSTRUCT_TEXT), null, null);
		}
		foreach ((array) $this->get_item_tags(SIMPLEPIE_NAMESPACE_DC_10, 'creator') as $author)
		{
			$authors[] =& new $this->feed->author_class($this->sanitize($author['data'], SIMPLEPIE_CONSTRUCT_TEXT), null, null);
		}
		foreach ((array) $this->get_item_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'author') as $author)
		{
			$authors[] =& new $this->feed->author_class($this->sanitize($author['data'], SIMPLEPIE_CONSTRUCT_TEXT), null, null);
		}

		if (!empty($authors))
		{
			return SimplePie_Misc::array_unique($authors);
		}
		elseif (($source = $this->get_source()) && ($authors = $source->get_authors()))
		{
			return $authors;
		}
		elseif ($authors = $this->feed->get_authors())
		{
			return $authors;
		}
		else
		{
			return null;
		}
	}

	function get_copyright()
	{
		if ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'rights'))
		{
			return $this->sanitize($return[0]['data'], SimplePie_Misc::atom_10_construct_type($return[0]['attribs']), $this->get_base($return[0]));
		}
		elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_DC_11, 'rights'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_DC_10, 'rights'))
		{
			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
		}
		else
		{
			return null;
		}
	}

	function get_date($date_format = 'j F Y, g:i a')
	{
		if (!isset($this->data['date']))
		{
			if ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'published'))
			{
				$this->data['date']['raw'] = $return[0]['data'];
			}
			elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'updated'))
			{
				$this->data['date']['raw'] = $return[0]['data'];
			}
			elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'issued'))
			{
				$this->data['date']['raw'] = $return[0]['data'];
			}
			elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'created'))
			{
				$this->data['date']['raw'] = $return[0]['data'];
			}
			elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'modified'))
			{
				$this->data['date']['raw'] = $return[0]['data'];
			}
			elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'pubDate'))
			{
				$this->data['date']['raw'] = $return[0]['data'];
			}
			elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_DC_11, 'date'))
			{
				$this->data['date']['raw'] = $return[0]['data'];
			}
			elseif ($return = $this->get_item_tags(SIMPLEPIE_NAMESPACE_DC_10, 'date'))
			{
				$this->data['date']['raw'] = $return[0]['data'];
			}

			if (!empty($this->data['date']['raw']))
			{
				$parser = SimplePie_Parse_Date::get();
				$this->data['date']['parsed'] = $parser->parse($this->data['date']['raw']);
			}
			else
			{
				$this->data['date'] = null;
			}
		}
		if ($this->data['date'])
		{
			$date_format = (string) $date_format;
			switch ($date_format)
			{
				case '':
					return $this->sanitize($this->data['date']['raw'], SIMPLEPIE_CONSTRUCT_TEXT);

				case 'U':
					return $this->data['date']['parsed'];

				default:
					return date($date_format, $this->data['date']['parsed']);
			}
		}
		else
		{
			return null;
		}
	}

	function get_local_date($date_format = '%c')
	{
		if (!$date_format)
		{
			return $this->sanitize($this->get_date(''), SIMPLEPIE_CONSTRUCT_TEXT);
		}
		elseif (($date = $this->get_date('U')) !== null && $date !== false)
		{
			return strftime($date_format, $date);
		}
		else
		{
			return null;
		}
	}

	function get_permalink()
	{
		$link = $this->get_link();
		$enclosure = $this->get_enclosure(0);
		if ($link !== null)
		{
			return $link;
		}
		elseif ($enclosure !== null)
		{
			return $enclosure->get_link();
		}
		else
		{
			return null;
		}
	}

	function get_link($key = 0, $rel = 'alternate')
	{
		$links = $this->get_links($rel);
		if ($links[$key] !== null)
		{
			return $links[$key];
		}
		else
		{
			return null;
		}
	}

	function get_links($rel = 'alternate')
	{
		if (!isset($this->data['links']))
		{
			$this->data['links'] = array();
			foreach ((array) $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'link') as $link)
			{
				if (isset($link['attribs']['']['href']))
				{
					$link_rel = (isset($link['attribs']['']['rel'])) ? $link['attribs']['']['rel'] : 'alternate';
					$this->data['links'][$link_rel][] = $this->sanitize($link['attribs']['']['href'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($link));

				}
			}
			foreach ((array) $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'link') as $link)
			{
				if (isset($link['attribs']['']['href']))
				{
					$link_rel = (isset($link['attribs']['']['rel'])) ? $link['attribs']['']['rel'] : 'alternate';
					$this->data['links'][$link_rel][] = $this->sanitize($link['attribs']['']['href'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($link));
				}
			}
			if ($links = $this->get_item_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'link'))
			{
				$this->data['links']['alternate'][] = $this->sanitize($links[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($links[0]));
			}
			if ($links = $this->get_item_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'link'))
			{
				$this->data['links']['alternate'][] = $this->sanitize($links[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($links[0]));
			}
			if ($links = $this->get_item_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'link'))
			{
				$this->data['links']['alternate'][] = $this->sanitize($links[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($links[0]));
			}
			if ($links = $this->get_item_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'guid'))
			{
				if (!isset($links[0]['attribs']['']['isPermaLink']) || strtolower(trim($links[0]['attribs']['']['isPermaLink'])) === 'true')
				{
					$this->data['links']['alternate'][] = $this->sanitize($links[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($links[0]));
				}
			}

			$keys = array_keys($this->data['links']);
			foreach ($keys as $key)
			{
				if (SimplePie_Misc::is_isegment_nz_nc($key))
				{
					if (isset($this->data['links'][SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY . $key]))
					{
						$this->data['links'][SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY . $key] = array_merge($this->data['links'][$key], $this->data['links'][SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY . $key]);
						$this->data['links'][$key] =& $this->data['links'][SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY . $key];
					}
					else
					{
						$this->data['links'][SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY . $key] =& $this->data['links'][$key];
					}
				}
				elseif (substr($key, 0, 41) === SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY)
				{
					$this->data['links'][substr($key, 41)] =& $this->data['links'][$key];
				}
				$this->data['links'][$key] = array_unique($this->data['links'][$key]);
			}
		}
		if (isset($this->data['links'][$rel]))
		{
			return $this->data['links'][$rel];
		}
		else
		{
			return null;
		}
	}

	/**
	 * @todo Add ability to prefer one type of content over another (in a media group).
	 */
	function get_enclosure($key = 0, $prefer = null)
	{
		$enclosures = $this->get_enclosures();
		if (isset($enclosures[$key]))
		{
			return $enclosures[$key];
		}
		else
		{
			return null;
		}
	}

	/**
	 * Grabs all available enclosures (podcasts, etc.)
	 *
	 * Supports the <enclosure> RSS tag, as well as Media RSS and iTunes RSS.
	 *
	 * At this point, we're pretty much assuming that all enclosures for an item are the same content.  Anything else is too complicated to properly support.
	 *
	 * @todo Add support for end-user defined sorting of enclosures by type/handler (so we can prefer the faster-loading FLV over MP4).
	 * @todo If an element exists at a level, but it's value is empty, we should fall back to the value from the parent (if it exists).
	 */
	function get_enclosures()
	{
		if (!isset($this->data['enclosures']))
		{
			$this->data['enclosures'] = array();

			// Elements
			$captions_parent = null;
			$categories_parent = null;
			$copyrights_parent = null;
			$credits_parent = null;
			$description_parent = null;
			$duration_parent = null;
			$hashes_parent = null;
			$keywords_parent = null;
			$player_parent = null;
			$ratings_parent = null;
			$restrictions_parent = null;
			$thumbnails_parent = null;
			$title_parent = null;

			// Let's do the channel and item-level ones first, and just re-use them if we need to.
			$parent = $this->get_feed();

			// CAPTIONS
			if ($captions = $this->get_item_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'text'))
			{
				foreach ($captions as $caption)
				{
					$caption_type = null;
					$caption_lang = null;
					$caption_startTime = null;
					$caption_endTime = null;
					$caption_text = null;
					if (isset($caption['attribs']['']['type']))
					{
						$caption_type = $this->sanitize($caption['attribs']['']['type'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					if (isset($caption['attribs']['']['lang']))
					{
						$caption_lang = $this->sanitize($caption['attribs']['']['lang'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					if (isset($caption['attribs']['']['start']))
					{
						$caption_startTime = $this->sanitize($caption['attribs']['']['start'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					if (isset($caption['attribs']['']['end']))
					{
						$caption_endTime = $this->sanitize($caption['attribs']['']['end'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					if (isset($caption['data']))
					{
						$caption_text = $this->sanitize($caption['data'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					$captions_parent[] =& new $this->feed->caption_class($caption_type, $caption_lang, $caption_startTime, $caption_endTime, $caption_text);
				}
			}
			elseif ($captions = $parent->get_channel_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'text'))
			{
				foreach ($captions as $caption)
				{
					$caption_type = null;
					$caption_lang = null;
					$caption_startTime = null;
					$caption_endTime = null;
					$caption_text = null;
					if (isset($caption['attribs']['']['type']))
					{
						$caption_type = $this->sanitize($caption['attribs']['']['type'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					if (isset($caption['attribs']['']['lang']))
					{
						$caption_lang = $this->sanitize($caption['attribs']['']['lang'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					if (isset($caption['attribs']['']['start']))
					{
						$caption_startTime = $this->sanitize($caption['attribs']['']['start'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					if (isset($caption['attribs']['']['end']))
					{
						$caption_endTime = $this->sanitize($caption['attribs']['']['end'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					if (isset($caption['data']))
					{
						$caption_text = $this->sanitize($caption['data'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					$captions_parent[] =& new $this->feed->caption_class($caption_type, $caption_lang, $caption_startTime, $caption_endTime, $caption_text);
				}
			}
			if (is_array($captions_parent))
			{
				$captions_parent = array_values(SimplePie_Misc::array_unique($captions_parent));
			}

			// CATEGORIES
			foreach ((array) $this->get_item_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'category') as $category)
			{
				$term = null;
				$scheme = null;
				$label = null;
				if (isset($category['data']))
				{
					$term = $this->sanitize($category['data'], SIMPLEPIE_CONSTRUCT_TEXT);
				}
				if (isset($category['attribs']['']['scheme']))
				{
					$scheme = $this->sanitize($category['attribs']['']['scheme'], SIMPLEPIE_CONSTRUCT_TEXT);
				}
				else
				{
					$scheme = 'http://search.yahoo.com/mrss/category_schema';
				}
				if (isset($category['attribs']['']['label']))
				{
					$label = $this->sanitize($category['attribs']['']['label'], SIMPLEPIE_CONSTRUCT_TEXT);
				}
				$categories_parent[] =& new $this->feed->category_class($term, $scheme, $label);
			}
			foreach ((array) $parent->get_channel_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'category') as $category)
			{
				$term = null;
				$scheme = null;
				$label = null;
				if (isset($category['data']))
				{
					$term = $this->sanitize($category['data'], SIMPLEPIE_CONSTRUCT_TEXT);
				}
				if (isset($category['attribs']['']['scheme']))
				{
					$scheme = $this->sanitize($category['attribs']['']['scheme'], SIMPLEPIE_CONSTRUCT_TEXT);
				}
				else
				{
					$scheme = 'http://search.yahoo.com/mrss/category_schema';
				}
				if (isset($category['attribs']['']['label']))
				{
					$label = $this->sanitize($category['attribs']['']['label'], SIMPLEPIE_CONSTRUCT_TEXT);
				}
				$categories_parent[] =& new $this->feed->category_class($term, $scheme, $label);
			}
			foreach ((array) $parent->get_channel_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'category') as $category)
			{
				$term = null;
				$scheme = 'http://www.itunes.com/dtds/podcast-1.0.dtd';
				$label = null;
				if (isset($category['attribs']['']['text']))
				{
					$label = $this->sanitize($category['attribs']['']['text'], SIMPLEPIE_CONSTRUCT_TEXT);
				}
				$categories_parent[] =& new $this->feed->category_class($term, $scheme, $label);

				if (isset($category['child'][SIMPLEPIE_NAMESPACE_ITUNES]['category']))
				{
					foreach ((array) $category['child'][SIMPLEPIE_NAMESPACE_ITUNES]['category'] as $subcategory)
					{
						if (isset($subcategory['attribs']['']['text']))
						{
							$label = $this->sanitize($subcategory['attribs']['']['text'], SIMPLEPIE_CONSTRUCT_TEXT);
						}
						$categories_parent[] =& new $this->feed->category_class($term, $scheme, $label);
					}
				}
			}
			if (is_array($categories_parent))
			{
				$categories_parent = array_values(SimplePie_Misc::array_unique($categories_parent));
			}

			// COPYRIGHT
			if ($copyright = $this->get_item_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'copyright'))
			{
				$copyright_url = null;
				$copyright_label = null;
				if (isset($copyright[0]['attribs']['']['url']))
				{
					$copyright_url = $this->sanitize($copyright[0]['attribs']['']['url'], SIMPLEPIE_CONSTRUCT_TEXT);
				}
				if (isset($copyright[0]['data']))
				{
					$copyright_label = $this->sanitize($copyright[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
				}
				$copyrights_parent =& new $this->feed->copyright_class($copyright_url, $copyright_label);
			}
			elseif ($copyright = $parent->get_channel_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'copyright'))
			{
				$copyright_url = null;
				$copyright_label = null;
				if (isset($copyright[0]['attribs']['']['url']))
				{
					$copyright_url = $this->sanitize($copyright[0]['attribs']['']['url'], SIMPLEPIE_CONSTRUCT_TEXT);
				}
				if (isset($copyright[0]['data']))
				{
					$copyright_label = $this->sanitize($copyright[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
				}
				$copyrights_parent =& new $this->feed->copyright_class($copyright_url, $copyright_label);
			}

			// CREDITS
			if ($credits = $this->get_item_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'credit'))
			{
				foreach ($credits as $credit)
				{
					$credit_role = null;
					$credit_scheme = null;
					$credit_name = null;
					if (isset($credit['attribs']['']['role']))
					{
						$credit_role = $this->sanitize($credit['attribs']['']['role'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					if (isset($credit['attribs']['']['scheme']))
					{
						$credit_scheme = $this->sanitize($credit['attribs']['']['scheme'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					else
					{
						$credit_scheme = 'urn:ebu';
					}
					if (isset($credit['data']))
					{
						$credit_name = $this->sanitize($credit['data'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					$credits_parent[] =& new $this->feed->credit_class($credit_role, $credit_scheme, $credit_name);
				}
			}
			elseif ($credits = $parent->get_channel_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'credit'))
			{
				foreach ($credits as $credit)
				{
					$credit_role = null;
					$credit_scheme = null;
					$credit_name = null;
					if (isset($credit['attribs']['']['role']))
					{
						$credit_role = $this->sanitize($credit['attribs']['']['role'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					if (isset($credit['attribs']['']['scheme']))
					{
						$credit_scheme = $this->sanitize($credit['attribs']['']['scheme'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					else
					{
						$credit_scheme = 'urn:ebu';
					}
					if (isset($credit['data']))
					{
						$credit_name = $this->sanitize($credit['data'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					$credits_parent[] =& new $this->feed->credit_class($credit_role, $credit_scheme, $credit_name);
				}
			}
			if (is_array($credits_parent))
			{
				$credits_parent = array_values(SimplePie_Misc::array_unique($credits_parent));
			}

			// DESCRIPTION
			if ($description_parent = $this->get_item_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'description'))
			{
				if (isset($description_parent[0]['data']))
				{
					$description_parent = $this->sanitize($description_parent[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
				}
			}
			elseif ($description_parent = $parent->get_channel_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'description'))
			{
				if (isset($description_parent[0]['data']))
				{
					$description_parent = $this->sanitize($description_parent[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
				}
			}

			// DURATION
			if ($duration_parent = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'duration'))
			{
				$seconds = null;
				$minutes = null;
				$hours = null;
				if (isset($duration_parent[0]['data']))
				{
					$temp = explode(':', $this->sanitize($duration_parent[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT));
					if (sizeof($temp) > 0)
					{
						$seconds = (int) array_pop($temp);
					}
					if (sizeof($temp) > 0)
					{
						$minutes = (int) array_pop($temp);
						$seconds += $minutes * 60;
					}
					if (sizeof($temp) > 0)
					{
						$hours = (int) array_pop($temp);
						$seconds += $hours * 3600;
					}
					unset($temp);
					$duration_parent = $seconds;
				}
			}

			// HASHES
			if ($hashes_iterator = $this->get_item_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'hash'))
			{
				foreach ($hashes_iterator as $hash)
				{
					$value = null;
					$algo = null;
					if (isset($hash['data']))
					{
						$value = $this->sanitize($hash['data'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					if (isset($hash['attribs']['']['algo']))
					{
						$algo = $this->sanitize($hash['attribs']['']['algo'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					else
					{
						$algo = 'md5';
					}
					$hashes_parent[] = $algo.':'.$value;
				}
			}
			elseif ($hashes_iterator = $parent->get_channel_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'hash'))
			{
				foreach ($hashes_iterator as $hash)
				{
					$value = null;
					$algo = null;
					if (isset($hash['data']))
					{
						$value = $this->sanitize($hash['data'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					if (isset($hash['attribs']['']['algo']))
					{
						$algo = $this->sanitize($hash['attribs']['']['algo'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					else
					{
						$algo = 'md5';
					}
					$hashes_parent[] = $algo.':'.$value;
				}
			}
			if (is_array($hashes_parent))
			{
				$hashes_parent = array_values(SimplePie_Misc::array_unique($hashes_parent));
			}

			// KEYWORDS
			if ($keywords = $this->get_item_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'keywords'))
			{
				if (isset($keywords[0]['data']))
				{
					$temp = explode(',', $this->sanitize($keywords[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT));
					foreach ($temp as $word)
					{
						$keywords_parent[] = trim($word);
					}
				}
				unset($temp);
			}
			elseif ($keywords = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'keywords'))
			{
				if (isset($keywords[0]['data']))
				{
					$temp = explode(',', $this->sanitize($keywords[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT));
					foreach ($temp as $word)
					{
						$keywords_parent[] = trim($word);
					}
				}
				unset($temp);
			}
			elseif ($keywords = $parent->get_channel_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'keywords'))
			{
				if (isset($keywords[0]['data']))
				{
					$temp = explode(',', $this->sanitize($keywords[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT));
					foreach ($temp as $word)
					{
						$keywords_parent[] = trim($word);
					}
				}
				unset($temp);
			}
			elseif ($keywords = $parent->get_channel_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'keywords'))
			{
				if (isset($keywords[0]['data']))
				{
					$temp = explode(',', $this->sanitize($keywords[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT));
					foreach ($temp as $word)
					{
						$keywords_parent[] = trim($word);
					}
				}
				unset($temp);
			}
			if (is_array($keywords_parent))
			{
				$keywords_parent = array_values(SimplePie_Misc::array_unique($keywords_parent));
			}

			// PLAYER
			if ($player_parent = $this->get_item_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'player'))
			{
				if (isset($player_parent[0]['attribs']['']['url']))
				{
					$player_parent = $this->sanitize($player_parent[0]['attribs']['']['url'], SIMPLEPIE_CONSTRUCT_IRI);
				}
			}
			elseif ($player_parent = $parent->get_channel_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'player'))
			{
				if (isset($player_parent[0]['attribs']['']['url']))
				{
					$player_parent = $this->sanitize($player_parent[0]['attribs']['']['url'], SIMPLEPIE_CONSTRUCT_IRI);
				}
			}

			// RATINGS
			if ($ratings = $this->get_item_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'rating'))
			{
				foreach ($ratings as $rating)
				{
					$rating_scheme = null;
					$rating_value = null;
					if (isset($rating['attribs']['']['scheme']))
					{
						$rating_scheme = $this->sanitize($rating['attribs']['']['scheme'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					else
					{
						$rating_scheme = 'urn:simple';
					}
					if (isset($rating['data']))
					{
						$rating_value = $this->sanitize($rating['data'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					$ratings_parent[] =& new $this->feed->rating_class($rating_scheme, $rating_value);
				}
			}
			elseif ($ratings = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'explicit'))
			{
				foreach ($ratings as $rating)
				{
					$rating_scheme = 'urn:itunes';
					$rating_value = null;
					if (isset($rating['data']))
					{
						$rating_value = $this->sanitize($rating['data'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					$ratings_parent[] =& new $this->feed->rating_class($rating_scheme, $rating_value);
				}
			}
			elseif ($ratings = $parent->get_channel_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'rating'))
			{
				foreach ($ratings as $rating)
				{
					$rating_scheme = null;
					$rating_value = null;
					if (isset($rating['attribs']['']['scheme']))
					{
						$rating_scheme = $this->sanitize($rating['attribs']['']['scheme'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					else
					{
						$rating_scheme = 'urn:simple';
					}
					if (isset($rating['data']))
					{
						$rating_value = $this->sanitize($rating['data'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					$ratings_parent[] =& new $this->feed->rating_class($rating_scheme, $rating_value);
				}
			}
			elseif ($ratings = $parent->get_channel_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'explicit'))
			{
				foreach ($ratings as $rating)
				{
					$rating_scheme = 'urn:itunes';
					$rating_value = null;
					if (isset($rating['data']))
					{
						$rating_value = $this->sanitize($rating['data'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					$ratings_parent[] =& new $this->feed->rating_class($rating_scheme, $rating_value);
				}
			}
			if (is_array($ratings_parent))
			{
				$ratings_parent = array_values(SimplePie_Misc::array_unique($ratings_parent));
			}

			// RESTRICTIONS
			if ($restrictions = $this->get_item_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'restriction'))
			{
				foreach ($restrictions as $restriction)
				{
					$restriction_relationship = null;
					$restriction_type = null;
					$restriction_value = null;
					if (isset($restriction['attribs']['']['relationship']))
					{
						$restriction_relationship = $this->sanitize($restriction['attribs']['']['relationship'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					if (isset($restriction['attribs']['']['type']))
					{
						$restriction_type = $this->sanitize($restriction['attribs']['']['type'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					if (isset($restriction['data']))
					{
						$restriction_value = $this->sanitize($restriction['data'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					$restrictions_parent[] =& new $this->feed->restriction_class($restriction_relationship, $restriction_type, $restriction_value);
				}
			}
			elseif ($restrictions = $this->get_item_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'block'))
			{
				foreach ($restrictions as $restriction)
				{
					$restriction_relationship = 'allow';
					$restriction_type = null;
					$restriction_value = 'itunes';
					if (isset($restriction['data']) && strtolower($restriction['data']) === 'yes')
					{
						$restriction_relationship = 'deny';
					}
					$restrictions_parent[] =& new $this->feed->restriction_class($restriction_relationship, $restriction_type, $restriction_value);
				}
			}
			elseif ($restrictions = $parent->get_channel_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'restriction'))
			{
				foreach ($restrictions as $restriction)
				{
					$restriction_relationship = null;
					$restriction_type = null;
					$restriction_value = null;
					if (isset($restriction['attribs']['']['relationship']))
					{
						$restriction_relationship = $this->sanitize($restriction['attribs']['']['relationship'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					if (isset($restriction['attribs']['']['type']))
					{
						$restriction_type = $this->sanitize($restriction['attribs']['']['type'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					if (isset($restriction['data']))
					{
						$restriction_value = $this->sanitize($restriction['data'], SIMPLEPIE_CONSTRUCT_TEXT);
					}
					$restrictions_parent[] =& new $this->feed->restriction_class($restriction_relationship, $restriction_type, $restriction_value);
				}
			}
			elseif ($restrictions = $parent->get_channel_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'block'))
			{
				foreach ($restrictions as $restriction)
				{
					$restriction_relationship = 'allow';
					$restriction_type = null;
					$restriction_value = 'itunes';
					if (isset($restriction['data']) && strtolower($restriction['data']) === 'yes')
					{
						$restriction_relationship = 'deny';
					}
					$restrictions_parent[] =& new $this->feed->restriction_class($restriction_relationship, $restriction_type, $restriction_value);
				}
			}
			if (is_array($restrictions_parent))
			{
				$restrictions_parent = array_values(SimplePie_Misc::array_unique($restrictions_parent));
			}

			// THUMBNAILS
			if ($thumbnails = $this->get_item_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'thumbnail'))
			{
				foreach ($thumbnails as $thumbnail)
				{
					if (isset($thumbnail['attribs']['']['url']))
					{
						$thumbnails_parent[] = $this->sanitize($thumbnail['attribs']['']['url'], SIMPLEPIE_CONSTRUCT_IRI);
					}
				}
			}
			elseif ($thumbnails = $parent->get_channel_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'thumbnail'))
			{
				foreach ($thumbnails as $thumbnail)
				{
					if (isset($thumbnail['attribs']['']['url']))
					{
						$thumbnails_parent[] = $this->sanitize($thumbnail['attribs']['']['url'], SIMPLEPIE_CONSTRUCT_IRI);
					}
				}
			}

			// TITLES
			if ($title_parent = $this->get_item_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'title'))
			{
				if (isset($title_parent[0]['data']))
				{
					$title_parent = $this->sanitize($title_parent[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
				}
			}
			elseif ($title_parent = $parent->get_channel_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'title'))
			{
				if (isset($title_parent[0]['data']))
				{
					$title_parent = $this->sanitize($title_parent[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
				}
			}

			// Clear the memory
			unset($parent);

			// Attributes
			$bitrate = null;
			$channels = null;
			$duration = null;
			$expression = null;
			$framerate = null;
			$height = null;
			$javascript = null;
			$lang = null;
			$length = null;
			$medium = null;
			$samplingrate = null;
			$type = null;
			$url = null;
			$width = null;

			// Elements
			$captions = null;
			$categories = null;
			$copyrights = null;
			$credits = null;
			$description = null;
			$hashes = null;
			$keywords = null;
			$player = null;
			$ratings = null;
			$restrictions = null;
			$thumbnails = null;
			$title = null;

			// If we have media:group tags, loop through them.
			foreach ((array) $this->get_item_tags(SIMPLEPIE_NAMESPACE_MEDIARSS, 'group') as $group)
			{
				if(isset($group['child']) && isset($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['content']))
				{
					// If we have media:content tags, loop through them.
					foreach ((array) $group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['content'] as $content)
					{
						if (isset($content['attribs']['']['url']))
						{
							// Attributes
							$bitrate = null;
							$channels = null;
							$duration = null;
							$expression = null;
							$framerate = null;
							$height = null;
							$javascript = null;
							$lang = null;
							$length = null;
							$medium = null;
							$samplingrate = null;
							$type = null;
							$url = null;
							$width = null;

							// Elements
							$captions = null;
							$categories = null;
							$copyrights = null;
							$credits = null;
							$description = null;
							$hashes = null;
							$keywords = null;
							$player = null;
							$ratings = null;
							$restrictions = null;
							$thumbnails = null;
							$title = null;

							// Start checking the attributes of media:content
							if (isset($content['attribs']['']['bitrate']))
							{
								$bitrate = $this->sanitize($content['attribs']['']['bitrate'], SIMPLEPIE_CONSTRUCT_TEXT);
							}
							if (isset($content['attribs']['']['channels']))
							{
								$channels = $this->sanitize($content['attribs']['']['channels'], SIMPLEPIE_CONSTRUCT_TEXT);
							}
							if (isset($content['attribs']['']['duration']))
							{
								$duration = $this->sanitize($content['attribs']['']['duration'], SIMPLEPIE_CONSTRUCT_TEXT);
							}
							else
							{
								$duration = $duration_parent;
							}
							if (isset($content['attribs']['']['expression']))
							{
								$expression = $this->sanitize($content['attribs']['']['expression'], SIMPLEPIE_CONSTRUCT_TEXT);
							}
							if (isset($content['attribs']['']['framerate']))
							{
								$framerate = $this->sanitize($content['attribs']['']['framerate'], SIMPLEPIE_CONSTRUCT_TEXT);
							}
							if (isset($content['attribs']['']['height']))
							{
								$height = $this->sanitize($content['attribs']['']['height'], SIMPLEPIE_CONSTRUCT_TEXT);
							}
							if (isset($content['attribs']['']['lang']))
							{
								$lang = $this->sanitize($content['attribs']['']['lang'], SIMPLEPIE_CONSTRUCT_TEXT);
							}
							if (isset($content['attribs']['']['fileSize']))
							{
								$length = ceil($content['attribs']['']['fileSize']);
							}
							if (isset($content['attribs']['']['medium']))
							{
								$medium = $this->sanitize($content['attribs']['']['medium'], SIMPLEPIE_CONSTRUCT_TEXT);
							}
							if (isset($content['attribs']['']['samplingrate']))
							{
								$samplingrate = $this->sanitize($content['attribs']['']['samplingrate'], SIMPLEPIE_CONSTRUCT_TEXT);
							}
							if (isset($content['attribs']['']['type']))
							{
								$type = $this->sanitize($content['attribs']['']['type'], SIMPLEPIE_CONSTRUCT_TEXT);
							}
							if (isset($content['attribs']['']['width']))
							{
								$width = $this->sanitize($content['attribs']['']['width'], SIMPLEPIE_CONSTRUCT_TEXT);
							}
							$url = $this->sanitize($content['attribs']['']['url'], SIMPLEPIE_CONSTRUCT_IRI);

							// Checking the other optional media: elements. Priority: media:content, media:group, item, channel

							// CAPTIONS
							if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['text']))
							{
								foreach ($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['text'] as $caption)
								{
									$caption_type = null;
									$caption_lang = null;
									$caption_startTime = null;
									$caption_endTime = null;
									$caption_text = null;
									if (isset($caption['attribs']['']['type']))
									{
										$caption_type = $this->sanitize($caption['attribs']['']['type'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									if (isset($caption['attribs']['']['lang']))
									{
										$caption_lang = $this->sanitize($caption['attribs']['']['lang'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									if (isset($caption['attribs']['']['start']))
									{
										$caption_startTime = $this->sanitize($caption['attribs']['']['start'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									if (isset($caption['attribs']['']['end']))
									{
										$caption_endTime = $this->sanitize($caption['attribs']['']['end'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									if (isset($caption['data']))
									{
										$caption_text = $this->sanitize($caption['data'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									$captions[] =& new $this->feed->caption_class($caption_type, $caption_lang, $caption_startTime, $caption_endTime, $caption_text);
								}
								if (is_array($captions))
								{
									$captions = array_values(SimplePie_Misc::array_unique($captions));
								}
							}
							elseif (isset($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['text']))
							{
								foreach ($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['text'] as $caption)
								{
									$caption_type = null;
									$caption_lang = null;
									$caption_startTime = null;
									$caption_endTime = null;
									$caption_text = null;
									if (isset($caption['attribs']['']['type']))
									{
										$caption_type = $this->sanitize($caption['attribs']['']['type'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									if (isset($caption['attribs']['']['lang']))
									{
										$caption_lang = $this->sanitize($caption['attribs']['']['lang'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									if (isset($caption['attribs']['']['start']))
									{
										$caption_startTime = $this->sanitize($caption['attribs']['']['start'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									if (isset($caption['attribs']['']['end']))
									{
										$caption_endTime = $this->sanitize($caption['attribs']['']['end'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									if (isset($caption['data']))
									{
										$caption_text = $this->sanitize($caption['data'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									$captions[] =& new $this->feed->caption_class($caption_type, $caption_lang, $caption_startTime, $caption_endTime, $caption_text);
								}
								if (is_array($captions))
								{
									$captions = array_values(SimplePie_Misc::array_unique($captions));
								}
							}
							else
							{
								$captions = $captions_parent;
							}

							// CATEGORIES
							if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['category']))
							{
								foreach ((array) $content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['category'] as $category)
								{
									$term = null;
									$scheme = null;
									$label = null;
									if (isset($category['data']))
									{
										$term = $this->sanitize($category['data'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									if (isset($category['attribs']['']['scheme']))
									{
										$scheme = $this->sanitize($category['attribs']['']['scheme'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									else
									{
										$scheme = 'http://search.yahoo.com/mrss/category_schema';
									}
									if (isset($category['attribs']['']['label']))
									{
										$label = $this->sanitize($category['attribs']['']['label'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									$categories[] =& new $this->feed->category_class($term, $scheme, $label);
								}
							}
							if (isset($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['category']))
							{
								foreach ((array) $group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['category'] as $category)
								{
									$term = null;
									$scheme = null;
									$label = null;
									if (isset($category['data']))
									{
										$term = $this->sanitize($category['data'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									if (isset($category['attribs']['']['scheme']))
									{
										$scheme = $this->sanitize($category['attribs']['']['scheme'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									else
									{
										$scheme = 'http://search.yahoo.com/mrss/category_schema';
									}
									if (isset($category['attribs']['']['label']))
									{
										$label = $this->sanitize($category['attribs']['']['label'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									$categories[] =& new $this->feed->category_class($term, $scheme, $label);
								}
							}
							if (is_array($categories) && is_array($categories_parent))
							{
								$categories = array_values(SimplePie_Misc::array_unique(array_merge($categories, $categories_parent)));
							}
							elseif (is_array($categories))
							{
								$categories = array_values(SimplePie_Misc::array_unique($categories));
							}
							elseif (is_array($categories_parent))
							{
								$categories = array_values(SimplePie_Misc::array_unique($categories_parent));
							}

							// COPYRIGHTS
							if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['copyright']))
							{
								$copyright_url = null;
								$copyright_label = null;
								if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['copyright'][0]['attribs']['']['url']))
								{
									$copyright_url = $this->sanitize($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['copyright'][0]['attribs']['']['url'], SIMPLEPIE_CONSTRUCT_TEXT);
								}
								if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['copyright'][0]['data']))
								{
									$copyright_label = $this->sanitize($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['copyright'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
								}
								$copyrights =& new $this->feed->copyright_class($copyright_url, $copyright_label);
							}
							elseif (isset($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['copyright']))
							{
								$copyright_url = null;
								$copyright_label = null;
								if (isset($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['copyright'][0]['attribs']['']['url']))
								{
									$copyright_url = $this->sanitize($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['copyright'][0]['attribs']['']['url'], SIMPLEPIE_CONSTRUCT_TEXT);
								}
								if (isset($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['copyright'][0]['data']))
								{
									$copyright_label = $this->sanitize($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['copyright'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
								}
								$copyrights =& new $this->feed->copyright_class($copyright_url, $copyright_label);
							}
							else
							{
								$copyrights = $copyrights_parent;
							}

							// CREDITS
							if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['credit']))
							{
								foreach ($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['credit'] as $credit)
								{
									$credit_role = null;
									$credit_scheme = null;
									$credit_name = null;
									if (isset($credit['attribs']['']['role']))
									{
										$credit_role = $this->sanitize($credit['attribs']['']['role'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									if (isset($credit['attribs']['']['scheme']))
									{
										$credit_scheme = $this->sanitize($credit['attribs']['']['scheme'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									else
									{
										$credit_scheme = 'urn:ebu';
									}
									if (isset($credit['data']))
									{
										$credit_name = $this->sanitize($credit['data'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									$credits[] =& new $this->feed->credit_class($credit_role, $credit_scheme, $credit_name);
								}
								if (is_array($credits))
								{
									$credits = array_values(SimplePie_Misc::array_unique($credits));
								}
							}
							elseif (isset($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['credit']))
							{
								foreach ($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['credit'] as $credit)
								{
									$credit_role = null;
									$credit_scheme = null;
									$credit_name = null;
									if (isset($credit['attribs']['']['role']))
									{
										$credit_role = $this->sanitize($credit['attribs']['']['role'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									if (isset($credit['attribs']['']['scheme']))
									{
										$credit_scheme = $this->sanitize($credit['attribs']['']['scheme'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									else
									{
										$credit_scheme = 'urn:ebu';
									}
									if (isset($credit['data']))
									{
										$credit_name = $this->sanitize($credit['data'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									$credits[] =& new $this->feed->credit_class($credit_role, $credit_scheme, $credit_name);
								}
								if (is_array($credits))
								{
									$credits = array_values(SimplePie_Misc::array_unique($credits));
								}
							}
							else
							{
								$credits = $credits_parent;
							}

							// DESCRIPTION
							if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['description']))
							{
								$description = $this->sanitize($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['description'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
							}
							elseif (isset($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['description']))
							{
								$description = $this->sanitize($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['description'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
							}
							else
							{
								$description = $description_parent;
							}

							// HASHES
							if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['hash']))
							{
								foreach ($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['hash'] as $hash)
								{
									$value = null;
									$algo = null;
									if (isset($hash['data']))
									{
										$value = $this->sanitize($hash['data'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									if (isset($hash['attribs']['']['algo']))
									{
										$algo = $this->sanitize($hash['attribs']['']['algo'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									else
									{
										$algo = 'md5';
									}
									$hashes[] = $algo.':'.$value;
								}
								if (is_array($hashes))
								{
									$hashes = array_values(SimplePie_Misc::array_unique($hashes));
								}
							}
							elseif (isset($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['hash']))
							{
								foreach ($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['hash'] as $hash)
								{
									$value = null;
									$algo = null;
									if (isset($hash['data']))
									{
										$value = $this->sanitize($hash['data'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									if (isset($hash['attribs']['']['algo']))
									{
										$algo = $this->sanitize($hash['attribs']['']['algo'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									else
									{
										$algo = 'md5';
									}
									$hashes[] = $algo.':'.$value;
								}
								if (is_array($hashes))
								{
									$hashes = array_values(SimplePie_Misc::array_unique($hashes));
								}
							}
							else
							{
								$hashes = $hashes_parent;
							}

							// KEYWORDS
							if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['keywords']))
							{
								if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['keywords'][0]['data']))
								{
									$temp = explode(',', $this->sanitize($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['keywords'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT));
									foreach ($temp as $word)
									{
										$keywords[] = trim($word);
									}
									unset($temp);
								}
								if (is_array($keywords))
								{
									$keywords = array_values(SimplePie_Misc::array_unique($keywords));
								}
							}
							elseif (isset($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['keywords']))
							{
								if (isset($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['keywords'][0]['data']))
								{
									$temp = explode(',', $this->sanitize($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['keywords'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT));
									foreach ($temp as $word)
									{
										$keywords[] = trim($word);
									}
									unset($temp);
								}
								if (is_array($keywords))
								{
									$keywords = array_values(SimplePie_Misc::array_unique($keywords));
								}
							}
							else
							{
								$keywords = $keywords_parent;
							}

							// PLAYER
							if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['player']))
							{
								$player = $this->sanitize($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['player'][0]['attribs']['']['url'], SIMPLEPIE_CONSTRUCT_IRI);
							}
							elseif (isset($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['player']))
							{
								$player = $this->sanitize($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['player'][0]['attribs']['']['url'], SIMPLEPIE_CONSTRUCT_IRI);
							}
							else
							{
								$player = $player_parent;
							}

							// RATINGS
							if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['rating']))
							{
								foreach ($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['rating'] as $rating)
								{
									$rating_scheme = null;
									$rating_value = null;
									if (isset($rating['attribs']['']['scheme']))
									{
										$rating_scheme = $this->sanitize($rating['attribs']['']['scheme'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									else
									{
										$rating_scheme = 'urn:simple';
									}
									if (isset($rating['data']))
									{
										$rating_value = $this->sanitize($rating['data'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									$ratings[] =& new $this->feed->rating_class($rating_scheme, $rating_value);
								}
								if (is_array($ratings))
								{
									$ratings = array_values(SimplePie_Misc::array_unique($ratings));
								}
							}
							elseif (isset($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['rating']))
							{
								foreach ($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['rating'] as $rating)
								{
									$rating_scheme = null;
									$rating_value = null;
									if (isset($rating['attribs']['']['scheme']))
									{
										$rating_scheme = $this->sanitize($rating['attribs']['']['scheme'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									else
									{
										$rating_scheme = 'urn:simple';
									}
									if (isset($rating['data']))
									{
										$rating_value = $this->sanitize($rating['data'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									$ratings[] =& new $this->feed->rating_class($rating_scheme, $rating_value);
								}
								if (is_array($ratings))
								{
									$ratings = array_values(SimplePie_Misc::array_unique($ratings));
								}
							}
							else
							{
								$ratings = $ratings_parent;
							}

							// RESTRICTIONS
							if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['restriction']))
							{
								foreach ($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['restriction'] as $restriction)
								{
									$restriction_relationship = null;
									$restriction_type = null;
									$restriction_value = null;
									if (isset($restriction['attribs']['']['relationship']))
									{
										$restriction_relationship = $this->sanitize($restriction['attribs']['']['relationship'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									if (isset($restriction['attribs']['']['type']))
									{
										$restriction_type = $this->sanitize($restriction['attribs']['']['type'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									if (isset($restriction['data']))
									{
										$restriction_value = $this->sanitize($restriction['data'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									$restrictions[] =& new $this->feed->restriction_class($restriction_relationship, $restriction_type, $restriction_value);
								}
								if (is_array($restrictions))
								{
									$restrictions = array_values(SimplePie_Misc::array_unique($restrictions));
								}
							}
							elseif (isset($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['restriction']))
							{
								foreach ($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['restriction'] as $restriction)
								{
									$restriction_relationship = null;
									$restriction_type = null;
									$restriction_value = null;
									if (isset($restriction['attribs']['']['relationship']))
									{
										$restriction_relationship = $this->sanitize($restriction['attribs']['']['relationship'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									if (isset($restriction['attribs']['']['type']))
									{
										$restriction_type = $this->sanitize($restriction['attribs']['']['type'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									if (isset($restriction['data']))
									{
										$restriction_value = $this->sanitize($restriction['data'], SIMPLEPIE_CONSTRUCT_TEXT);
									}
									$restrictions[] =& new $this->feed->restriction_class($restriction_relationship, $restriction_type, $restriction_value);
								}
								if (is_array($restrictions))
								{
									$restrictions = array_values(SimplePie_Misc::array_unique($restrictions));
								}
							}
							else
							{
								$restrictions = $restrictions_parent;
							}

							// THUMBNAILS
							if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['thumbnail']))
							{
								foreach ($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['thumbnail'] as $thumbnail)
								{
									$thumbnails[] = $this->sanitize($thumbnail['attribs']['']['url'], SIMPLEPIE_CONSTRUCT_IRI);
								}
								if (is_array($thumbnails))
								{
									$thumbnails = array_values(SimplePie_Misc::array_unique($thumbnails));
								}
							}
							elseif (isset($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['thumbnail']))
							{
								foreach ($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['thumbnail'] as $thumbnail)
								{
									$thumbnails[] = $this->sanitize($thumbnail['attribs']['']['url'], SIMPLEPIE_CONSTRUCT_IRI);
								}
								if (is_array($thumbnails))
								{
									$thumbnails = array_values(SimplePie_Misc::array_unique($thumbnails));
								}
							}
							else
							{
								$thumbnails = $thumbnails_parent;
							}

							// TITLES
							if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['title']))
							{
								$title = $this->sanitize($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['title'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
							}
							elseif (isset($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['title']))
							{
								$title = $this->sanitize($group['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['title'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
							}
							else
							{
								$title = $title_parent;
							}

							$this->data['enclosures'][] =& new $this->feed->enclosure_class($url, $type, $length, $this->feed->javascript, $bitrate, $captions, $categories, $channels, $copyrights, $credits, $description, $duration, $expression, $framerate, $hashes, $height, $keywords, $lang, $medium, $player, $ratings, $restrictions, $samplingrate, $thumbnails, $title, $width);
						}
					}
				}
			}

			// If we have standalone media:content tags, loop through them.
			if (isset($this->data['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['content']))
			{
				foreach ((array) $this->data['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['content'] as $content)
				{
					if (isset($content['attribs']['']['url']) || isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['player']))
					{
						// Attributes
						$bitrate = null;
						$channels = null;
						$duration = null;
						$expression = null;
						$framerate = null;
						$height = null;
						$javascript = null;
						$lang = null;
						$length = null;
						$medium = null;
						$samplingrate = null;
						$type = null;
						$url = null;
						$width = null;

						// Elements
						$captions = null;
						$categories = null;
						$copyrights = null;
						$credits = null;
						$description = null;
						$hashes = null;
						$keywords = null;
						$player = null;
						$ratings = null;
						$restrictions = null;
						$thumbnails = null;
						$title = null;

						// Start checking the attributes of media:content
						if (isset($content['attribs']['']['bitrate']))
						{
							$bitrate = $this->sanitize($content['attribs']['']['bitrate'], SIMPLEPIE_CONSTRUCT_TEXT);
						}
						if (isset($content['attribs']['']['channels']))
						{
							$channels = $this->sanitize($content['attribs']['']['channels'], SIMPLEPIE_CONSTRUCT_TEXT);
						}
						if (isset($content['attribs']['']['duration']))
						{
							$duration = $this->sanitize($content['attribs']['']['duration'], SIMPLEPIE_CONSTRUCT_TEXT);
						}
						else
						{
							$duration = $duration_parent;
						}
						if (isset($content['attribs']['']['expression']))
						{
							$expression = $this->sanitize($content['attribs']['']['expression'], SIMPLEPIE_CONSTRUCT_TEXT);
						}
						if (isset($content['attribs']['']['framerate']))
						{
							$framerate = $this->sanitize($content['attribs']['']['framerate'], SIMPLEPIE_CONSTRUCT_TEXT);
						}
						if (isset($content['attribs']['']['height']))
						{
							$height = $this->sanitize($content['attribs']['']['height'], SIMPLEPIE_CONSTRUCT_TEXT);
						}
						if (isset($content['attribs']['']['lang']))
						{
							$lang = $this->sanitize($content['attribs']['']['lang'], SIMPLEPIE_CONSTRUCT_TEXT);
						}
						if (isset($content['attribs']['']['fileSize']))
						{
							$length = ceil($content['attribs']['']['fileSize']);
						}
						if (isset($content['attribs']['']['medium']))
						{
							$medium = $this->sanitize($content['attribs']['']['medium'], SIMPLEPIE_CONSTRUCT_TEXT);
						}
						if (isset($content['attribs']['']['samplingrate']))
						{
							$samplingrate = $this->sanitize($content['attribs']['']['samplingrate'], SIMPLEPIE_CONSTRUCT_TEXT);
						}
						if (isset($content['attribs']['']['type']))
						{
							$type = $this->sanitize($content['attribs']['']['type'], SIMPLEPIE_CONSTRUCT_TEXT);
						}
						if (isset($content['attribs']['']['width']))
						{
							$width = $this->sanitize($content['attribs']['']['width'], SIMPLEPIE_CONSTRUCT_TEXT);
						}
						if (isset($content['attribs']['']['url']))
						{
							$url = $this->sanitize($content['attribs']['']['url'], SIMPLEPIE_CONSTRUCT_IRI);
						}
						// Checking the other optional media: elements. Priority: media:content, media:group, item, channel

						// CAPTIONS
						if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['text']))
						{
							foreach ($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['text'] as $caption)
							{
								$caption_type = null;
								$caption_lang = null;
								$caption_startTime = null;
								$caption_endTime = null;
								$caption_text = null;
								if (isset($caption['attribs']['']['type']))
								{
									$caption_type = $this->sanitize($caption['attribs']['']['type'], SIMPLEPIE_CONSTRUCT_TEXT);
								}
								if (isset($caption['attribs']['']['lang']))
								{
									$caption_lang = $this->sanitize($caption['attribs']['']['lang'], SIMPLEPIE_CONSTRUCT_TEXT);
								}
								if (isset($caption['attribs']['']['start']))
								{
									$caption_startTime = $this->sanitize($caption['attribs']['']['start'], SIMPLEPIE_CONSTRUCT_TEXT);
								}
								if (isset($caption['attribs']['']['end']))
								{
									$caption_endTime = $this->sanitize($caption['attribs']['']['end'], SIMPLEPIE_CONSTRUCT_TEXT);
								}
								if (isset($caption['data']))
								{
									$caption_text = $this->sanitize($caption['data'], SIMPLEPIE_CONSTRUCT_TEXT);
								}
								$captions[] =& new $this->feed->caption_class($caption_type, $caption_lang, $caption_startTime, $caption_endTime, $caption_text);
							}
							if (is_array($captions))
							{
								$captions = array_values(SimplePie_Misc::array_unique($captions));
							}
						}
						else
						{
							$captions = $captions_parent;
						}

						// CATEGORIES
						if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['category']))
						{
							foreach ((array) $content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['category'] as $category)
							{
								$term = null;
								$scheme = null;
								$label = null;
								if (isset($category['data']))
								{
									$term = $this->sanitize($category['data'], SIMPLEPIE_CONSTRUCT_TEXT);
								}
								if (isset($category['attribs']['']['scheme']))
								{
									$scheme = $this->sanitize($category['attribs']['']['scheme'], SIMPLEPIE_CONSTRUCT_TEXT);
								}
								else
								{
									$scheme = 'http://search.yahoo.com/mrss/category_schema';
								}
								if (isset($category['attribs']['']['label']))
								{
									$label = $this->sanitize($category['attribs']['']['label'], SIMPLEPIE_CONSTRUCT_TEXT);
								}
								$categories[] =& new $this->feed->category_class($term, $scheme, $label);
							}
						}
						if (is_array($categories) && is_array($categories_parent))
						{
							$categories = array_values(SimplePie_Misc::array_unique(array_merge($categories, $categories_parent)));
						}
						elseif (is_array($categories))
						{
							$categories = array_values(SimplePie_Misc::array_unique($categories));
						}
						elseif (is_array($categories_parent))
						{
							$categories = array_values(SimplePie_Misc::array_unique($categories_parent));
						}
						else
						{
							$categories = null;
						}

						// COPYRIGHTS
						if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['copyright']))
						{
							$copyright_url = null;
							$copyright_label = null;
							if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['copyright'][0]['attribs']['']['url']))
							{
								$copyright_url = $this->sanitize($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['copyright'][0]['attribs']['']['url'], SIMPLEPIE_CONSTRUCT_TEXT);
							}
							if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['copyright'][0]['data']))
							{
								$copyright_label = $this->sanitize($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['copyright'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
							}
							$copyrights =& new $this->feed->copyright_class($copyright_url, $copyright_label);
						}
						else
						{
							$copyrights = $copyrights_parent;
						}

						// CREDITS
						if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['credit']))
						{
							foreach ($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['credit'] as $credit)
							{
								$credit_role = null;
								$credit_scheme = null;
								$credit_name = null;
								if (isset($credit['attribs']['']['role']))
								{
									$credit_role = $this->sanitize($credit['attribs']['']['role'], SIMPLEPIE_CONSTRUCT_TEXT);
								}
								if (isset($credit['attribs']['']['scheme']))
								{
									$credit_scheme = $this->sanitize($credit['attribs']['']['scheme'], SIMPLEPIE_CONSTRUCT_TEXT);
								}
								else
								{
									$credit_scheme = 'urn:ebu';
								}
								if (isset($credit['data']))
								{
									$credit_name = $this->sanitize($credit['data'], SIMPLEPIE_CONSTRUCT_TEXT);
								}
								$credits[] =& new $this->feed->credit_class($credit_role, $credit_scheme, $credit_name);
							}
							if (is_array($credits))
							{
								$credits = array_values(SimplePie_Misc::array_unique($credits));
							}
						}
						else
						{
							$credits = $credits_parent;
						}

						// DESCRIPTION
						if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['description']))
						{
							$description = $this->sanitize($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['description'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
						}
						else
						{
							$description = $description_parent;
						}

						// HASHES
						if (isset($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['hash']))
						{
							foreach ($content['child'][SIMPLEPIE_NAMESPACE_MEDIARSS]['hash'] as $hash)