Description:
------------
---
From manual page: http://www.php.net/function.xml-parser-free
---

The memory usage of the script below goes through the roof.
It happen only when execute "xml_set_object".
It does not happen when I execute "unset($this->parser);".


Test script:
---------------
<?php
class xml  {
    var $parser;

    function __construct() 
    {
        $this->parser = xml_parser_create();
        xml_set_object($this->parser, $this);
    }

    function parse($data) 
    {
        xml_parse($this->parser, $data);
    }

    function free(){
        xml_parser_free($this->parser);
        //unset($this->parser);
    }
}

$xml_test = '<?xml version="1.0" encoding="utf-8"?><test></test>';
for ($i = 0; $i < 100000000; $i++) {
  $xml_parser = new xml();
  $xml_parser->parse($xml_test);
  $xml_parser->free();
  unset($xml_parser);
}
?>


Expected result:
----------------
Empty output.

Actual result:
--------------
Out of memory error.