- var_dump: documentation ( source)
<?php
$doc = new DOMDocument('1.0', 'UTF-8');
$doc->loadXML('<root xmlns:ns="foo" ns:id="1"> <one/> <two/> <three/> <four/> <five/> </root>');
$finder = new DOMXPath($doc);
$nodes = $finder->query("//node()[namespace::ns]");
foreach ($nodes as $n) {
var_dump($doc->saveXML($n));
}