DOMImplementation->hasFeature() Test if the DOM implementation implements a specific feature &reftitle.description; DOMImplementation boolhasFeature stringfeature stringversion Test if the DOM implementation implements a specific feature. You can find a list of all features in the Conformance section of the DOM specification. &reftitle.parameters; feature The feature to test. version The version number of the feature to test. In level 2, this can be either 2.0 or 1.0. &reftitle.returnvalues; &return.success; &reftitle.examples; 'Core module', 'XML' => 'XML module', 'HTML' => 'HTML module', 'Views' => 'Views module', 'Stylesheets' => 'Style Sheets module', 'CSS' => 'CSS module', 'CSS2' => 'CSS2 module', 'Events' => 'Events module', 'UIEvents' => 'User interface Events module', 'MouseEvents' => 'Mouse Events module', 'MutationEvents' => 'Mutation Events module', 'HTMLEvents' => 'HTML Events module', 'Range' => 'Range module', 'Traversal' => 'Traversal module' ); foreach ($features as $key => $name) { if (DOMImplementation::hasFeature($key, '2.0')) { echo "Has feature $name\n"; } else { echo "Missing feature $name\n"; } } ?> ]]> &reftitle.seealso;