DOMElement::getElementsByTagNameNS
(PHP 5, PHP 7)
DOMElement::getElementsByTagNameNS — Get elements by namespaceURI and localName
说明
$namespaceURI
, string $localName
)
This function fetch all the descendant elements with a given
localName and namespaceURI.
参数
-
namespaceURI -
The namespace URI.
-
localName -
The local name. Use * to return all elements within the element tree.
返回值
This function returns a new instance of the class DOMNodeList of all matched elements in the order in which they are encountered in a preorder traversal of this element tree.
参见
- DOMElement::getElementsByTagName() - Gets elements by tagname
用户评论:
[#1] spam at chovy dot com [2009-06-03 17:36:24]
I had some difficulty stripping all default NS attributes for an ns-uri in one shot, the following will work though...first strip the documentElement namespace, then getElementsByTagNameNS() -- the documentation should reflect that the 2nd argument is actually the name of the tag, not the local namespace prefix as I first expected:
<?php
function strip_default_ns( $xml = null, $ns_uri = 'http://example.com/XML-Foo' ) {
$ns_local = '';
$ns_tag = '*';
if ( empty($xml) ) return false;
//remove document namespace
$dom = new DOMDocument();
$dom->loadXML($xml);
$dom->documentElement->removeAttributeNS($ns_uri, $ns_local);
//strip element namespaces
foreach ( $dom->getElementsByTagNameNS($ns_uri, $ns_tag) as $elem ) {
$elem->removeAttributeNS($ns_uri, $ns_local);
}
return $dom->saveXML();
}
$stripped_xml = strip_default_ns($the_xml);
?>
$stripped_xml can now take advantage of running XPath queries on it for the NULL namespace.