Xpath fails if an element has a a xmlns attribute
- by Callum Lamb
Im trying to use xml to parse a .COLLADA file. The problem is I can't seem to use xpath() to access elements if the root tag has a xmlns attribute.
For example this works:
$string = <<<TEST
<?xml version="1.0" encoding="utf-8"?>
<COLLADA version="1.4.1">
<library_materials>
<material id="Material" name="Material">
<instance_effect url="#Material-effect"/>
</material>
<material id="Material2" name="Material">
<instance_effect url="#Material-effect2"/>
</material>
</library_materials>
</COLLADA>
TEST;
$lol = new SimpleXMLElement($string);
print_r($lol->library_materials->xpath("material[@id='Material2']"));
But this doesn't:
$string = <<<TEST
<?xml version="1.0" encoding="utf-8"?>
<COLLADA xmlns="http://www.collada.org/2005/11/COLLADASchema" version="1.4.1">
<library_materials>
<material id="Material" name="Material">
<instance_effect url="#Material-effect"/>
</material>
<material id="Material2" name="Material">
<instance_effect url="#Material-effect2"/>
</material>
</library_materials>
</COLLADA>
TEST;
$lol = new SimpleXMLElement($string);
print_r($lol->library_materials->xpath("material[@id='Material2']"));
How does the xmlns suddenly make the xml tree unusable? I thought it just defined the namespace so you could tell it apart from other identical tags in other namespaces. What am I missing?
