Load XML into SimpleXMLElement without Namespaces.

namespacelessxml.php

<?php
/**
 * Loads XML and kills namespaces in the process.
 * It allows easy usage of namespaced XML code.
 * 
 * - NameSpaced tags are renamed from <ns:tag to <ns_tag.
 * - NameSpaced tags are renamed from </ns:tag> to </ns_tag>.
 * - NameSpaced attributes are renamed from ns:tag=... to ns_tag=....
 * 
 * @license http://sam.zoy.org/wtfpl/
 * 
 * @param string $xml
 * @param string $sxclass
 * @param bool $nsattr
 * @param int $flags
 * @return SimpleXMLElement
 */
function simplexml_load_string_nons($xml, $sxclass = 'SimpleXMLElement', $nsattr = false, $flags = null){
	// Validate arguments first
	if(!is_string($sxclass) or empty($sxclass) or !class_exists($sxclass)){
		trigger_error('$sxclass must be a SimpleXMLElement or a derived class.', E_USER_WARNING);
		return false;
	}
	if(!is_string($xml) or empty($xml)){
		trigger_error('$xml must be a non-empty string.', E_USER_WARNING);
		return false;
	}

	// Load XML if URL is provided as XML
	if(preg_match('~^https?://[^\s]+$~i', $xml) || file_exists($xml)){
		$xml = file_get_contents($xml);
	}

	// Let's drop namespace definitions
	if(stripos($xml, 'xmlns=') !== false){
		$xml = preg_replace('~[\s]+xmlns=[\'"].+?[\'"]~i', null, $xml);
	}

	// I know this looks kind of funny but it changes namespaced attributes
	if(preg_match_all('~xmlns:([a-z0-9]+)=~i', $xml, $matches)){
		foreach(($namespaces = array_unique($matches[1])) as $namespace){
			$escaped_namespace = preg_quote($namespace, '~');
			$xml = preg_replace('~[\s]xmlns:'.$escaped_namespace.'=[\'].+?[\']~i', null, $xml);
			$xml = preg_replace('~[\s]xmlns:'.$escaped_namespace.'=["].+?["]~i', null, $xml);
			$xml = preg_replace('~([\'"\s])'.$escaped_namespace.':~i', '$1'.$namespace.'_', $xml);
		}
	}

	// Let's change <namespace:tag to <namespace_tag ns="namespace"
	$regexfrom = sprintf('~<([a-z0-9]+):%s~is', !empty($nsattr) ? '([a-z0-9]+)' : null);
	$regexto = strlen($nsattr) ? '<$1_$2 '.$nsattr.'="$1"' : '<$1_';
	$xml = preg_replace($regexfrom, $regexto, $xml);
	// Let's change </namespace:tag> to </namespace_tag>
	$xml = preg_replace('~</([a-z0-9]+):~is', '</$1_', $xml);

	// Default flags I use
	if(empty($flags)) $flags = LIBXML_COMPACT | LIBXML_NOBLANKS | LIBXML_NOCDATA;
	// Now load and return (namespaceless)
	return $xml = simplexml_load_string($xml, $sxclass, $flags);
}
?>

if(preg_match_all('xmlns:?([^=]*)=i', $xml, $matches)){
foreach(($namespaces = array_unique($matches[1])) as $namespace){
$escaped_namespace = preg_quote($namespace, '');
$xml = preg_replace('[\s]xmlns:?'.$escaped_namespace.'=['].+?[']i', null, $xml);
$xml = preg_replace('[\s]xmlns:?'.$escaped_namespace.'=["].+?["]i', null, $xml);
$xml = preg_replace('(['"\s])'.$escaped_namespace.':~i', '$1'.$namespace.'_', $xml);
}
}

DELETE LINE 34-37

~xmlns:([a-z0-9]+)=~i -> ~xmlns:?([^=]*)=~i
<([a-z0-9]+):%sis -> <([^:]+):%sis

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