(PHP 5)
DOMNode::isSupported — Checks if feature is supported for specified version
Checks if the asked feature is supported for the specified version .
The feature to test. See the example of DOMImplementation::hasFeature for a list of features.
The version number of the feature to test.
성공할 경우 TRUE를, 실패할 경우 FALSE를 반환합니다.