xml-php i want help?plz

dode123

Hello what is the wrong with this code?

i want but the $data in variables from xml file and use it out of function??
i use this way to take the information from XML file and fill it in Form?is this good way ,, thx 4 everyone

this is the php code

<? 
 function startElement($xml_parser, $name, $attributes) { 
     global $current; 
     $current=$name; 
 print("<p>Encountered Start Element For:  $name\n"); 
 } 

 function endElement($xml_parser, $name) { 
   print("<p>Encountered End Element For:  $name\n"); 
 } 

  function characterData($xml_parser, $data) { 
  global $current; 
  global $BB; 
  global $AA; 
  if($data != "\n") { 
      print("<p>Encountered Character Data:   $data\n"); 
    } 
    if ($current == "TITLE22"){ 
            $AA=$data; 
            echo "<br><br>".$AA; 
    } 
        if ($current == "BODY"){ 
                $BB=$data; 
                echo "<br><br>".$BB; 
    } 
  } 

  function load_data($file) { 
    $fh = fopen($file, "r") or die ("<P>COULD NOT OPEN FILE!"); 
    $data = fread($fh, filesize($file)); 
    return $data; 
  } 

  /***** MAIN *****/ 
  $file = "simple2.xml"; 

  $xml_parser = xml_parser_create(); 

  xml_set_element_handler($xml_parser, "startElement", "endElement"); 
  xml_set_character_data_handler($xml_parser, "characterData"); 

  xml_parse($xml_parser, load_data($file)) or die ("<P>ERROR PARSING XML!"); 

  xml_parser_free($xml_parser); 

echo "<br><br>***"; 
  echo $AA; 
  echo "<br><br>***"; 
  echo $BB; 
  echo "<br><br>***"; 
  ?>

<?xml version="1.0"?> 
<document> 
<title22>XML Exposed000000</title22> 
<body>Demystifying XML. Read about it here.</body> 
</document>