Parsing XML con PHP!

[Ruben Elmo]

Salve!
ho un file XML del tipo:

<?xml version="1.0" encoding="iso-8859-1" ?> 
  <galleries xmlns="x-schema:gallerySchema.xml">
    <site name="Informatica">
  
    <gallery>
      <name>Software</name> 
      <url>[url]http://www.softaware.it[/url]</url> 
      <type>Assistenza</type> 
    </gallery>
    <gallery>
      <name>Hardware</name> 
      <url>[url]http://www.hardware.com[/url]</url> 
      <type>Assistenza</type> 
    </gallery>
      ...
    </site>
  </gallery>

e il seguente script per la lettura e la stampa del file:

<?php
 $filename="prova.xml";
 if( ! ($fp = fopen( "$filename" , "r" )) )die("Couldn't open xml file!");
 $person_counter = 0;
 $person_data = array();
 $xml_current_tag_state = '';

 function startElementHandler( $parser, $element_name, $element_attribs ){
    global $person_counter;
    global $person_data;
    global $xml_current_tag_state;
    $xml_current_tag_state = $element_name;
 }

 function endElementHandler( $parser, $element_name ){
    global $person_counter;
    global $person_data;
    global $xml_current_tag_state;
    $xml_current_tag_state = '';
    if( $element_name == "SITE" ) {
        $person_counter++;
    }
 }

 function characterDataHandler( $parser , $data ){
    global $person_counter;
    global $person_data;
    global $xml_current_tag_state;
    if( $xml_current_tag_state == '' )
        return;
        
    if( $xml_current_tag_state == "GALLERY" ) {
        $person_data[$person_counter]["gallery"] = $data;
    } 
    if( $xml_current_tag_state == "NAME" ) {
        $person_data[$person_counter]["name"] = $data;
    }
    if( $xml_current_tag_state == "URL" ) {
        $person_data[$person_counter]["url"] = $data;
    }
    if( $xml_current_tag_state == "TYPE" ) {
        $person_data[$person_counter]["type"] = $data;
    }
 }

 if( !($xml_parser = xml_parser_create()) ) die("Couldn't create XML parser!");
 xml_set_element_handler($xml_parser, "startElementHandler", "endElementHandler");
 xml_set_character_data_handler($xml_parser, "characterDataHandler");

 while( $data = fread($fp, 4096) ){
    if( !xml_parse($xml_parser, $data, feof($fp)) ){
        break; // get out of while loop if we?re done with the file
    }
 }

 xml_parser_free($xml_parser);
?>

<?php
 for( $i=0 ; $i < $person_counter ; ++$i ){
    //$font_color = $person_data[$i]["alignment"] == "good" ? "#0000ff" : "#ff0000";
    echo $i . "
\n";
    echo "site: " . $person_data[$i]["site"] . "
\n";
    echo "url: " . $person_data[$i]["url"] . "
\n";
    echo "type: " . $person_data[$i]["type"] . "
\n";

    //echo "nuovo_tag_xml: " . $person_data[$i]["nuovo_tag_xml"] . "
\n";
    //se vuoi aggiungere nuovo campo
    echo "
\n";
 }
?>

Ma a quanto pare lo script non vuole saperne di estrapolarmi il nome del sito, l'url e il tipo :master:

Potrei avere dei consulti?

Grazie 1000!!!