Online PHP editor | refs for VR04Q

<?php $sample = new SimpleXMLElement('<root><parent><child1></child1></parent></root>'); $node = $sample->xpath('//parent'); $node[0]->addChild('child2'); echo f($sample); function f(SimpleXMLElement $x) { $doc = dom_import_simplexml($x)->ownerDocument; $doc->formatOutput = true; return $doc->saveXML(); }