How do I make document() function work in XSLT with URL to PHP file?

I am running an XML transformation in PHP5 (standard) with a stylesheet which "imports" external xml files using the document() function. The URL in the document() function is a reference to a PHP file, eg. <xsl:variable name="file" select="document('http://my-host.com/getXML.php?file=A123')". The PHP file gets the xml file from my database (based on session information).

I have set the http header for no caching, expiry in the past and content-type to text/xml in the PHP file.

When I acces the PHP URL directly in the browser I perfectly get my xml file.

But when doing the transformation the stylesheet does not get the xml.

What do I do wrong?
Henrik_NyholmAsked:
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Henrik_NyholmConnect With a Mentor Author Commented:
I actually found out what was the problem: sessions. Because the transformation runs on the server, the file requesting application is not the browser but the transformer component on the server which has no session; the browser has a session but this is not transfered to the transformer component.

So the transformation process runs on the server with no session even though the browser has a session, and therefore the transformation process gets no xml document based on session information.

When the xml request is not based on sessions everything works, even with no content header.

A little bit tricky... :-)
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numberkruncherConnect With a Mentor Commented:
Is the content type being set to "application/xml" by PHP?

i.e:
<?php
 
header('Content-type: application/xml');

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numberkruncherConnect With a Mentor Commented:
Sorry, in the above I meant to say, Have you tried setting the content type to "application/xml" instead of "text/xml" to see if it makes a difference.

Have you tried validating the XML that is generated by your PHP to verify that it is well formed?
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