Description:
------------
I am not sure if this is an actual bug or intended 
behavior, but there seems to be a BC break in SimpleXML 
regarding namespaced elements. 
 
I had a script which worked under 5.1.0, but after 
upgrading to 5.1.4, it broke. I have not tested it under 
5.1.1-5.1.3. 
 
Previously, (and according to most documentation and things 
I have read, namespaces are ignored, but the element will 
still be loaded in the SimpleXML element. Under 5.1.4, it 
seems namespaced elements are completely ignored. 

Reproduce code:
---------------
<?php
$xml = '<root xmlns:baz="http://baz.com"><foo>Hello</foo><baz:bar>World</baz:bar></root>';
$xml = simplexml_load_string($xml);
print_r($xml);
?>

Expected result:
----------------
This was the output in 5.1.0. 
 
SimpleXMLElement Object 
( 
    [foo] => Hello 
    [bar] => World 
) 

Actual result:
--------------
Output in 5.1.4 (and possibly .1-.3, I haven't tested). 
 
SimpleXMLElement Object  
(  
    [foo] => Hello  
)