PHP Manual
后退		前进

DOMNode->lookupNamespaceURI

(no version information, might be only in CVS)

DOMNode->lookupNamespaceURI -- Returns namespace URI of the node based on the prefix.

Description

string DOMNode->lookupNamespaceURI ( string prefix)

Returns namespace URI of the node based on the prefix.

后退	起点	前进
DOMNode->isSupported	上一级	DOMNode->lookupPrefix