xml i php

Jeg har dette i min xml fil:

<bf:event name="createPlayer" timestamp="18.8803">
  <bf:param type="int" name="player_id">3</bf:param>
  <bf:param type="vec3" name="player_location">457.128/41.94/220.76</bf:param>
  <bf:param type="string" name="name">Playername</bf:param>
  <bf:param type="int" name="is_ai">0</bf:param>
  <bf:param type="int" name="team">1</bf:param>
  </bf:event>

Er der nogen der kan fortælle mig hvor nedenstående ikke virker ?? Det er echo sætningen der ikke outputter noget.

<?php

$open_tags = array(
    'START' => '<bf:event name="createPlayer"',
    'PLAYERID' => '<bf:param type="int" name="player_id">',
    'PLAYERNAME' => '<bf:param type="string" name="name">');

$close_tags = array(
    'START' => '</bf:event>',
    'PLAYERID' => '</bf:param>',
    'PLAYERNAME' => '</bf:param>');
   
?>

<?php

// handles the attributes for opening tags
// $attrs is a multidimensional array keyed by attribute
// name and having the value of that attribute
function startElement($parser, $name, $attrs=''){
    global $open_tags, $temp, $current_tag;
    $current_tag = $name;
    if ($format = $open_tags[$name]){
    switch($name){
        case 'START':
        echo 'New event: ';
        break;
        default:
        break;
    }
    }
}

// $current_tag lets us know what tag we are currently
// dealing with - we use that later in the characterData
// function.
//
// when we see a </STORY> we know that it is time to
// flush our temp variables and prepare to move onto
// the next one
function endElement($parser, $name, $attrs=''){
    global $close_tags, $temp, $current_tag;
    if ($format = $close_tags[$name]){
    switch($name){
        case 'START':
        return_page($temp);
        $temp = '';
        break;
        default:
        break;
    }
    }
}

// this function is passed data between elements
// theu $data would equal 'Title Here'
// in the line <TITLE>Title Here</TITLE>
function characterData($parser, $data){
    global $current_tag, $temp, $catID;
    switch($current_tag){
    case 'PLAYERID':
        $temp['playerid'] = $data;
        $current_tag = '';
        break;
    case 'PLAYERNAME':
        $temp['playername'] = $data;
        $current_tag = '';
        break;
    default:
        break;
    }
}
?>

As you can see so far XML parsing in PHP isn't all that bad. Now for the fun part - parsing the file! For that you will need the rest of the code, which is fairly simple.

<?php

function return_page(){
    global $temp;
    echo ''.$temp['playerid'].' . <br> . '.$temp['playername'].' . <br><br>';
}

// what are we parsing?
$xml_file = 'blabla.xml';

// declare the character set - UTF-8 is the default
$type = 'UTF-8';

// create our parser
$xml_parser = xml_parser_create($type);

// set some parser options
xml_parser_set_option($xml_parser, XML_OPTION_CASE_FOLDING, true);
xml_parser_set_option($xml_parser, XML_OPTION_TARGET_ENCODING, 'UTF-8');

// this tells PHP what functions to call when it finds an element
// these funcitons also handle the element's attributes
xml_set_element_handler($xml_parser, 'startElement','endElement');

// this tells PHP what function to use on the character data
xml_set_character_data_handler($xml_parser, 'characterData');

if (!($fp = fopen($xml_file, 'r'))) {
    die("Could not open $xml_file for parsing!\n");
}

// loop through the file and parse baby!
while ($data = fread($fp, 4096)) {
    if (!($data = utf8_encode($data))) {
        echo 'ERROR'."\n";
    }
    if (!xml_parse($xml_parser, $data, feof($fp))) {
        die(sprintf( "XML error: %s at line %d\n\n",
        xml_error_string(xml_get_error_code($xml_parser)),
        xml_get_current_line_number($xml_parser)));
    }
}

xml_parser_free($xml_parser);

?>