Edit report at http://bugs.php.net/bug.php?id=52661&edit=1

 ID:                 52661
 Updated by:         rricha...@php.net
 Reported by:        tim at buyplaytix dot com
 Summary:            lookupNamespaceURI returns nothing
-Status:             Open
+Status:             Feedback
 Type:               Bug
 Package:            DOM XML related
 Operating System:   Ubuntu maverick
 PHP Version:        5.3.3
 Block user comment: N

 New Comment:

Thank you for this bug report. To properly diagnose the problem, we
need a short but complete example script to be able to reproduce
this bug ourselves. 

A proper reproducing script starts with <?php and ends with ?>,
is max. 10-20 lines long and does not require any external 
resources such as databases, etc. If the script requires a 
database to demonstrate the issue, please make sure it creates 
all necessary tables, stored procedures etc.

Please avoid embedding huge scripts into the report.

most likely its due to how you are removing and adding them back in.
Need a 

reproducible script to determine if this is really a bug in DOM or not


Previous Comments:
------------------------------------------------------------------------
[2010-08-20 20:07:34] tim at buyplaytix dot com

Description:
------------
Hopefully this is something that's fairly easy to see in the code.
Providing a 

full working code sample will be somewhat difficult. This seems to
happen most 

frequently with nodes that have been removed from the dom and added back


elsewhere.



Basically if I call lookupNamespace on a node I'm getting nothing back.
If I load 

the node into SimpleXML and call getNamespaces I'm getting the namespace
as 

expected.



The attached code is a workaround for the problem.

Test script:
---------------
  private function get_namespace($node) {

        $node_namespace = $node->lookupNamespaceURI($node->prefix);

        if($node instanceof DomElement && $node_namespace == null &&
strpos($node->nodeName, ":") !== false) {

            // must be some sort of DOM bug. Look and see if we can
figure it out from simplexml

            $sxe = simplexml_import_dom($node);

            $namespaces = $sxe->getNamespaces();

            foreach($namespaces as $prefix => $namespace) {

                if(strpos($node->nodeName, $prefix . ":") == 0) {

                    $node_namespace = $namespace;

                    break;

                }

            }

        }

        return $nodeNamespace;

    }



Expected result:
----------------
I expect that if I get into the body of the if statement that I will
return a 

null $node_namespace. Preferably I'd never get into the if statement.



------------------------------------------------------------------------



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