Assigning an XML object to a variable?

I'm sending a request to a remote web page using PHP's cURL in order to get a response back in XML. I've done this before and usually assign the response to a variable (eg. $result) before using Sablatron to transorm the XML. Here is the code I've been using: <?php $varsent = 'a='.$a.'&b='.$b.'&c='.$c.'&d='.$d; $ch=curl_init(); curl_setopt($ch,CURLOPT_URL,"http://www.mysite.com/xml.asp"); curl_setopt($ch,CURLOPT_POST,1); curl_setopt($ch,CURLOPT_POSTFIELDS, $varsent); $result=curl_exec($ch); curl_close($ch); ?> My next step is usually to XSLT the response held in $result. The problem with that is that $result is holding the value '1', which I'm assuming is simply the boolean 'true'. To see the XML response I have to right-click/view source on the browser page. Can anyone point me in the right direction to find out how to put this 'embedded' XML into a string or something else that I can transform? Thanks for reading. Brian