Xml parsing intermediate tutorial

Hey,

I was reading over Jubba’s "XML Parsing using PHP (Intermediate) tutorial and had a little question. I was trying to add a new entry. In the tutorial, we have: (i left out the whole xml, i think this is all you need)

<story>

        <headline> Godzilla Attacks LA! </headline> 
        <description>Equipped with a Japanese Mind-control device, 
the giant monster has attacked important harbours along 
the California coast. President to take action. </description>

    </story> 

so i added it to have a source tag also, like the following:

<story>
		<headline> Godzilla Attacks LA! </headline> 
		<description>Equipped with a Japanese Mind-control device, the giant monster has attacked important harbours along the California coast. President to take action. </description>
		<source>Jubba</source>
	</story>

I edited the php to be:

<?php

$xml_file = "xml_intermediate.xml";

$xml_headline_key = "*NEWS*STORY*HEADLINE";
$xml_description_key = "*NEWS*STORY*DESCRIPTION";
$xml_source_key = "*NEWS*STORY*SOURCE"; 	

$story_array = array();

$counter = 0;
class xml_story{
    var $headline, $description, $source;
}

function startTag($parser, $data){
    global $current_tag;
    $current_tag .= "*$data";
}

function endTag($parser, $data){
    global $current_tag;
    $tag_key = strrpos($current_tag, '*');
    $current_tag = substr($current_tag, 0, $tag_key);
}

function contents($parser, $data){
    global $current_tag, $xml_headline_key, $xml_description_key, $xml_source_key, $counter, $story_array;
    switch($current_tag){
        case $xml_headline_key:
            $story_array[$counter] = new xml_story();
            $story_array[$counter]->headline = $data;
            break;
        case $xml_description_key:
            $story_array[$counter]->description = $data;
            break;
		case $xml_source_key:
			$story_array[$counter]->source = $data;
			$counter++;
			break;
    }
}

$xml_parser = xml_parser_create();

xml_set_element_handler($xml_parser, "startTag", "endTag");

xml_set_character_data_handler($xml_parser, "contents");

$fp = fopen($xml_file, "r") or die("Could not open file");

$data = fread($fp, filesize($xml_file)) or die("Could not read file");

if(!(xml_parse($xml_parser, $data, feof($fp)))){
    die("Error on line " . xml_get_current_line_number($xml_parser));
}

xml_parser_free($xml_parser);

fclose($fp);

?>

<html>
<head>
<title>CNT HEADLINE NEWS</title>	
</head>
<body bgcolor="#FFFFFF">
<?php
for($x=0;$x<count($story_array);$x++){
    echo "	<h2>" . $story_array[$x]->headline . "</h2>
";
    echo "		
";
    echo "	<i>" . $story_array[$x]->description . "</i>
";
	echo "		
";
	echo "\<b>" . $stroy_array[$x]->source .  "</b>
";
}
?>

</body>
</html>

For some reason, when I load the page, all i see is a blank page. Any ideas?

Thank you.