SimpleXML Strip CDATA

gistfile1.php

<?php
	// Grab XML
	$xml_file = "rsform.xml";
	// Load xml data.
	$xml = file_get_contents($xml_file);
	// Strip whitespace between xml tags
	$xml = preg_replace('~\s*(<([^>]*)>[^<]*</\2>|<[^>]*>)\s*~','$1',$xml);
	// Convert CDATA into xml nodes.
	$xml = simplexml_load_string($xml,'SimpleXMLElement', LIBXML_NOCDATA);
	// Make variables
	// Return JSON.
	echo json_encode($xml);
?>

Thanks a lot !