Online PHP editor | refs for qDpE8

<?php $document = new DOMDocument(); $document->loadXML('<foo />'); $xpath = new DOMXPath($document); $xpath->registerNamespace('sig', 'http://www.w3.org/2000/09/xmldsig#'); $node = $xpath->query('//*[not(sig:SignatureValue)]'); $node->item(0)->nodeValue = 'sig'; var_dump($document->asXML());