<?php
	# http://www.mullanaphy.com/PHPs-SimpleXMLElement-and-XML-Namespaces/31.htm
	
	# Extended_SimpleXMLElement just has the added namespace method.
	# Oh, and an overwrite of addAttribute via Yuri Vecchi.
	# Love,
	# Mullanaphy!
	
	class Extended_SimpleXMLElement extends SimpleXMLElement {
		# Add a namespace to the main node.
		public function addNamespace($namespace=false,$url=false) {
			# If a namespace or a url are not present then bail out.
			if(!$namespace||!$url) return false;
			
			# Adding the attribute to be the main node.
			$this->addAttribute($namespace.':mullanaphy','',$url);
			
			# Return the url back so you can do something like:
			# $media = $XML->addNamespace('media','URI');
			# and be able to do $node->addAttribute('media:title','',$media); later.
			return $url;
		}
		
		# Overwrite the default asXML so we can preg_replace the empty namespace.
		public function asXML() { return preg_replace('# \w+\:mullanaphy=""#','',parent::asXML()); }
		
		# This I actually got from 'Yuri Vecchi' via php.net.
		# liked the idea so added it in. It allows you to chain
		# addAttribute() on the same node.
		# e.g. $node = $XML->addChild('node','')->addAttribute('a',1)->addAttribute('b',2);
		public function addAttribute($name,$value,$namespace=NULL) {
			parent::addAttribute($name,$value,$namespace);
			return $this;
		}
	}
?>