Rss parser

1

Hi,

I have build a small script to parse rss feeds.


<?php

class RSSParser {
	
	var $_url;
	var $_xmlParser;
	var $_items;
	/* Rss data vars */
	var $_inside = false;
	var $_tagname;
	/* Data content */
	var $_title;
	var $_description;
	var $_link;
	 
	function RSSParser($url)
	{
		$this->_url = $url;
		$this->Parse();
	}
	
	function Parse()
	{
		/* Create the new xml parser */
		$this->_xmlParser = xml_parser_create();
		/* Set the event handlers */ 
		xml_set_element_handler($this->_xmlParser, "StartElement", "EndElement");
		xml_set_character_data_handler($this->_xmlParser, "charachterData"); 
		/* Try to open the rss feed */
		$fp = fopen($this->_url,"r") or die("Oops, something seems to be wrong with the news feed. Please contact the webmaster."); 
		/* Read the file contents */
		while ($data = fread($fp, 4096)) 
		xml_parse($this->_xmlParser, $data, feof($fp));
		/* Close file and free parser */
		fclose($fp); 
		xml_parser_free($this->_xmlParser);
	}
	
	function GetItems()
	{
		return $this->_items;
	}
	
	function StartElement($parser, $tagname, $attributes)
	{
		if($tagname == "ITEM")
		{
			$this->_inside = true;
		}
		if($this->_inside == true)
		{
			$this->_tagname = $tagname;
		}	
	}
	
	function EndElement($parser, $tagname)
	{
		if($tagname == "ITEM")
		{
			$this->_items .= array ( title => $this->_title, description => $this->_description, link => $this->_link );
			$this->_title = "";
			$this->_description = "";
			$this->_link = "";
		}
	}
	
	function charachterData($parser, $data)
	{
		if($this->_inside)
		{
			switch($this->_tagname)
			{
				case "TITLE":
					$this->_title = $data;
				break;
				case "DESCRIPTION":
					$this->_description = $data;
				break;
				case "LINK":
					$this->_link = $data;
				break;
			}
		}
	}	
}

?>

But the problem is that I get several parsing errors, because the event handlers could not be called. Does someone know what the problem is?

Warning: Unable to call handler StartElement() in c:\phpdev\www\experimenten\experimenten
RSSParser.php on line 33

Warning: Unable to call handler StartElement() in c:\phpdev\www\experimenten\experimenten
RSSParser.php on line 33

Warning: Unable to call handler charachterData() in c:\phpdev\www\experimenten\experimenten
RSSParser.php on line 33

Warning: Unable to call handler charachterData() in c:\phpdev\www\experimenten\experimenten
RSSParser.php on line 33

Warning: Unable to call handler StartElement() in c:\phpdev\www\experimenten\experimenten
RSSParser.php on line 33

Warning: Unable to call handler charachterData() in c:\phpdev\www\experimenten\experimenten
RSSParser.php on line 33

Warning: Unable to call handler EndElement() in c:\phpdev\www\experimenten\experimenten
RSSParser.php on line 33

Thanks in advanced!