parsing a xml document

[cyrill]

Hi

I'm trying to parse the structure of a xml data file with a php script but the result of it is just a blank page. When I running the same script, which has no class (not using the OO principe), i works well and i get the output.

Does anyone know what mistake I did?

<?

class UserHandler 
{

  var $file = "data.xml";
  var $depth = array(); 

  function startElement($parser, $name, $attrs) {
    global $depth;
    for ($i = 0; $i < $this->depth[$parser]; $i++) {
      print "  ";
    }
    print "$name\n";
    $this->depth[$parser]++;
  }

  function endElement($parser, $name) {
    global $depth;
    $this->depth[$parser]--;
  }


  function read() {


$xml_parser = xml_parser_create();
xml_set_element_handler($xml_parser, "startElement", "endElement");



//Permissioncheck of the xmlfile
if (!($fp = fopen($this->file, "r"))) {
  die("could not open XML input");    } 

while ($data = fread($fp, 4096)) {     

  if (!xml_parse($xml_parser, $data, feof($fp))) {
    die(sprintf("XML error: %s at line %d",
                xml_error_string(xml_get_error_code($xml_parser)),
                xml_get_current_line_number($xml_parser)));
  }
}

xml_parser_free($xml_parser); 
  } 
}

$obj = new UserHandler();
$obj->read();


?>

Thanks a lot!!

Cyrill

[tomhath]

Not sure, but you might need to pass "this->startElement" and "this->endElement", to the element handler.

Also the "global $depth" declaration doesn't do anything (but shouldn't hurt either).