DOMNode
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DOMNode::lookupNamespaceURI

(PHP 5)

DOMNode::lookupNamespaceURI — Gets the namespace URI of the node based on the prefix

说明

public string DOMNode::lookupNamespaceURI ( string $prefix )

Gets the namespace URI of the node based on the prefix.

参数

prefix

The prefix of the namespace.

返回值

The namespace URI of the node.

参见

DOMNode
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PHP手册
PHP手册 - N: Gets the namespace URI of the node based on the prefix

用户评论:

_ michael (30-Apr-2010 10:22)

You have to pass *null* to lookupNamespaceURI if you want to read the default namespace. Passing an empty string doesn't work - even though the documentation says that lookupNamespaceURI takes a string as argument (and null would just be converted to an empty string).

lewar (05-Jun-2007 01:20)

Simple way to get the URI of the default namespace:

<?php
    $document = new DOMDocument();
    $document->load($xml_file);
    $uri = $document->documentElement->lookupnamespaceURI(NULL);
?>