DOMImplementation->hasFeature()

(No version information available, might be only in CVS)

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

说明

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。

范例

Example#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()


	PHP5中文手册 DOMImplementation->createDocumentType() DOMNamedNodeMap->getNamedItem() DOM PHP Manual DOMImplementation->hasFeature() (No version information available, might be only in CVS) DOMImplementation->hasFeature() — Test if the DOM implementation implements a specific feature 说明 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`。范例 Example#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() DOM PHP Manual