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"; } }
?>
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