- var_dump: documentation ( source)
<?php
$dom = new DOMDocument();
$dom->loadXML(
'<foobar><a:foo xmlns:a="urn:a">'.
'<b:bar xmlns:b="urn:b"/></a:foo>'.
'</foobar>'
);
$xpath = new DOMXPath($dom);
//get context node and check "a:foo"
$context = $dom->documentElement->firstChild;
var_dump($context->tagName);
// try to override the context node
$xpath->registerNamespace('a', 'urn:b');
var_dump(
$xpath->evaluate(
'descendant-or-self::a:*',
$context
)->item(0)->tagName
);
// use a prefix not used in context
$xpath->registerNamespace('prefix', 'urn:b');
var_dump(
$xpath->evaluate(
'descendant-or-self::prefix:*',
$context
)->item(0)->tagName
);