PHP Manual
后退		前进

DOMNode->isSupported

(no version information, might be only in CVS)

DOMNode->isSupported -- Checks if feature is supported for specified version.

Description

bool DOMNode->isSupported ( string feature, string version)

Checks if feature is supported for specified version.

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