DOMDocument->getElementsByTagNameNS()
DOMDocument->getElementsByTagNameNS() -- 
   Searches for all elements with given tag name in specified namespace
  
Description
class 
DOMDocument { 
DOMNodeList 
getElementsByTagNameNS ( string namespaceURI, string localName )
}
   Returns a DOMNodeList of all elements with a given 
   local name and a namespace URI.
  
Parameters
   
- namespaceURI
- 
       The namespace URI of the elements to match on. 
       The special value * matches all namespaces.
       
- localName
- 
       The local name of the elements to match on. 
       The special value * matches all local names.
       
Return Values
   A new DOMNodeList object containing all the matched 
   elements.
  
Examples
   
| Example 1. Get all the XInclude elements | 
<?php
 $xml = <<<EOD
 <?xml version="1.0" ?>
 <chapter xmlns:xi="http://www.w3.org/2001/XInclude">
 <title>Books of the other guy..</title>
 <para>
 <xi:include href="book.xml">
 <xi:fallback>
 <error>xinclude: book.xml not found</error>
 </xi:fallback>
 </xi:include>
 <include>
 This is another namespace
 </include>
 </para>
 </chapter>
 EOD;
 $dom = new DOMDocument;
 
 // load the XML string defined above
 $dom->loadXML($xml);
 
 foreach ($dom->getElementsByTagNameNS('http://www.w3.org/2001/XInclude', '*') as $element) {
 echo 'local name: ', $element->localName, ', prefix: ', $element->prefix, "\n";
 }
 ?>
 | 
 The above example will output: | local name: include, prefix: xi
local name: fallback, prefix: xi | 
 |