cXML response page in PHP

[rando1000]

I have some ASP code I'm trying to make work in PHP. The code is intended to receive a cXML feed and send a response. A tool sends this feed via tcp/ip port 80 transfer to my webserver. The tool fails when it is tried, but the client who owns the tool is unable to provide me with any log information as to why it fails. When I go to the page just through a browser, I get:

"XML Parsing Error: no element found" (if I use firefox. The IE error is so generic as to be totally useless).

This leads me to believe that the page is expecting some XML information to come in, and just not finding it.

Here's my code:

<?php
// Option $EXPLICIT;
header("Content-type: "."text/xml"); // $oXML is of type "msxml2.domdocu ment"
$uniqueID=doubl eval(time());
$oXML->resolveExterna ls=false;
$oXML->validateOnPars e=false;
$oXML->load($response );
$oXML->Save("/home/username".$uniq ueID.".xml");
?>
<!DOCTYPE cXML SYSTEM"http://xml.cXML.org/schemas/cXML/x.x.xxx/cXML.dtd">
<cXML payloadID="<? echo $uniqueID;?>@yo urdomain.com" xml:lang="en-US"
timestamp="1999-03-12T18:39-08:00">
<Response>
<Status code="200" text="OK"/>
</Response>
</cXML>
<?
$oXML=null;

?>