SimpleXML & libxml options (XInclude)


Hi there. I'm hoping someone can help me with what I think might be a slightly obscure problem.

I'm trying to get the SimpleXML extension to read an XML file and process the XInclude statements within the XML file.

The SimpleXML docs state that libxml options may be specified using the predefined constants that are available when PHP is compiled with libxml support (as it is when you use SimpleXML).
http://uk2.php.net/manual/en/function.simplexml-element-construct.php

So, looking at the libxml options, I see there is a predefined constant LIBXML_XINCLUDE which when specified should implement XInclude substitution. So my SimpleXML object I define as follows:

$xml_file = './master.xml';

$xml = new SimpleXMLElement($xml_file, LIBXML_XINCLUDE, true);

print_r($xml);

Viewing the resulting datastructure shows me that it has not honoured the request to implement the XInclude directives.

Does anyone know if a) I'm using the correct syntax for this, and b) have any experience of getting this working.

My master.xml file looks like this:

<?xml version="1.0" encoding="UTF-8"?>
<root xmlns:xi="http://www.w3.org/2001/XInclude";>
<foo>ssd</foo>
<bar>sss</bar>
<xi:include href="a.xml">
<xi:fallback>
<error>xinclude - a.xml not found</error>
</xi:fallback>
</xi:include>
</root>

and then I have a.xml which looks like:

<?xml version="1.0" encoding="UTF-8"?>
<a_root>
<oranges>test</oranges>
<apples>test more</apples>
</a_root>

I'm running PHP 5.1.5 with libxml 2.6.20 on Fedora Core 4 linux.

Cheers

Ben
.

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