DOMImplementation->hasFeature()
DOMImplementation->hasFeature() --
Test if the DOM implementation implements a specific feature
Description
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.
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.
Return Values
Returns TRUE on success or FALSE on failure.
Examples
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";
}
}
?>
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