Location: PHPKode > projects > Wallpaper Script > Wallpapers_Script/Wallpapers_Script/system/application/libraries/WS_Log.php
<?php
if ( ! defined ( 'BASEPATH' ) )
	exit ( 'No direct script access allowed' );
class WS_Log {

	var $log_path;
	var $_threshold	= 1;
	var $_date_fmt	= 'Y-m-d H:i:s';
	var $_enabled	= TRUE;
	var $_levels	= array('ERROR' => '1', 'DEBUG' => '2',  'INFO' => '3', 'ALL' => '4');
	public static $log;

	/**
	 * Constructor
	 *
	 * @access	public
	 * @param	string	the log file path
	 * @param	string	the error threshold
	 * @param	string	the date formatting codes
	 */
	function __construct()
	{
		$config =& get_config();
		
		$this->log_path = ($config['log_path'] != '') ? $config['log_path'] : BASEPATH.'logs/';
		
		if ( ! is_dir($this->log_path) OR ! is_really_writable($this->log_path))
		{
			$this->_enabled = FALSE;
		}
		
		if (is_numeric($config['log_threshold']))
		{
			$this->_threshold = $config['log_threshold'];
		}
			
		if ($config['log_date_format'] != '')
		{
			$this->_date_fmt = $config['log_date_format'];
		}
	}
	
	// --------------------------------------------------------------------
	
	/**
	 * Write Log File
	 *
	 * Generally this function will be called using the global log_message() function
	 *
	 * @access	public
	 * @param	string	the error level
	 * @param	string	the error message
	 * @param	bool	whether the error is a native PHP error
	 * @return	bool
	 */		
	function write_log($level = 'error', $msg, $php_error = FALSE)
	{		
		if ($this->_enabled === FALSE)
		{
			return FALSE;
		}
	
		$level = strtoupper($level);
		
		if ( ! isset($this->_levels[$level]) OR ($this->_levels[$level] > $this->_threshold))
		{
			return FALSE;
		}
	
		$filepath = $this->log_path.'log-'.date('Y-m-d').EXT;
		$message  = '';
		
		if ( ! file_exists($filepath))
		{
			$message .= "<"."?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed'); ?".">\n\n";
		}
			
		if ( ! $fp = @fopen($filepath, FOPEN_WRITE_CREATE))
		{
			return FALSE;
		}

		$message .= $level.' '.(($level == 'INFO') ? ' -' : '-').' '.date($this->_date_fmt). ' --> '.$msg."\n";
		self::$log .= $message;
		
		flock($fp, LOCK_EX);	
		fwrite($fp, $message);
		flock($fp, LOCK_UN);
		fclose($fp);
	
		@chmod($filepath, FILE_WRITE_MODE); 		
		return TRUE;
	}

}
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