Date: 08/22/05 (PHP Community)    Keywords: php, xml, java, microsoft

I've been trying to use JavaScript's XMLHttpRequest object to send XML to a PHP form. As far as sending the XML goes, I've got that worked out:

try
  {
  var req = new XMLHttpRequest();
  }
catch(e)
  {
  var req = new ActiveXObject("Microsoft.XMLHTTP");
  }

someXML = "bar";

req.open("POST", "example.php", false);
req.setRequestHeader("Content-Type", "text/xml");
req.send(someXML);
response = req.responseXML;

req.open("POST", "example.php?foo=bar", false);
req.send('');

Source: http://www.livejournal.com/community/php/338326.html