I can't include other style sheets.
I have tried many ways with full paths to the file and without the "file://".
Sabcmd parses them fine but I can't get php to.

My line:
<xsl:include href="file://test.xsl"/>
I pass it like:
xslt_run($parser, '/path/to/file/test.xsl', '/path/to/file/test.xml');