DOMImplementation->createDocumentType()	DOMNamedNodeMap->getNamedItem()

	Last updated: Mon, 16 Jul 2012

DOMImplementation->hasFeature()

(no version information, might be only in CVS)

DOMImplementation->hasFeature() -- Test if the DOM implementation implements a specific feature

说明

class DOMImplementation {

bool hasFeature ( string feature, string version )

}

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.

参数

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.

返回值

如果成功则返回 TRUE，失败则返回 FALSE。

例

例子 1. Testing your DOM Implementation


<?php



$features = array(

  'Core'           => '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";

  }

}



?>

参见

DOMNode->isSupported()

DOMImplementation->createDocumentType()	DOMNamedNodeMap->getNamedItem()

	Last updated: Mon, 16 Jul 2012


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