Online PHP editor | refs for O4X3F

<?php /** * @link http://stackoverflow.com/a/29864193/367456 */ $buffer = <<<XML <?xml version="1.0"?>    <!ENTITY nbsp " "> <foo> </foo> XML; libxml_disable_entity_loader(false); $xml = simplexml_load_string($buffer); $xml->asXML('php://output'); $xml = simplexml_load_string($buffer, 'SimpleXMLElement', LIBXML_NOENT); $xml->asXML('php://output');