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。
范例
例 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"; } }
?>
|
|