<?php
/**
================================================================================
 LISENCE
================================================================================

    This file is part of php4dvd.

    php4dvd is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    php4dvd is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with php4dvd. If not, see <http://www.gnu.org/licenses/>.
**/

/**
 * Detect the php4dvd version.
 *
 * @param $file of the version
 * @return the version number
 */
function getVersion($file) {
        // No file, probably version 0.1
        if(!file_exists($file))
                return "0.1";

        // Open file and read its version
        $handle = fopen($file, "r");
        $contents = @fread($handle, filesize($file)) or die("Can't read the contents of <tt>".$file."</tt>.");
        fclose($handle);

        $match = array();
        preg_match("/define\('VERSION', '([0-9](\.[0-9])?)'/", $contents, $match);
        if(count($match) != 3) {
                echo "Version could not be found in <tt>".$file."</tt>.";
                exit();
        }

        // Return full match of version
        return $match[1];
}

/**
 * Connect to server. Return if succesful
 *
 * @param $server,$user,$pass
 * @return successful, boolean value
 */
function getConnection($server,$user,$pass) {
    if (@mysql_connect($server,$user,$pass))
        return true;
    return false;
}

/**
 * Check if db exists. Return if succesful
 *
 * @param $db
 * @return successful, boolean value
 */
function getDb($db) {
    if (@mysql_select_db($db))
        return true;
    return false;
}

/**
 * Import config file, return true if successful
 *
 * @param $filename
 * @return successful, boolean value
 */
function loadConfig() {
    if (file_exists('../config/config.php')) {
        return '../config/config.php';
    } elseif (file_exists('../config.php')) {
        return '../config.php';
    }
    return '';
}
?>