PHP Manual
后退		前进

DOMNode->lookupPrefix

(no version information, might be only in CVS)

DOMNode->lookupPrefix -- Returns name space prefix of the node based on namespaceURI.

Description

string DOMNode->lookupPrefix ( string namespaceURI)

Returns name space prefix of the node based on namespaceURI.

后退	起点	前进
DOMNode->lookupNamespaceURI	上一级	DOMNode->normalize