* @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 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 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 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));	}	/**	 * 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 (SimplePie_Misc::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)	{		$this->raw_data = trim($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.