DOMImplementation::createDocumentTypeDOMImplementation::hasFeature
(PHP 5)
DOMImplementation::hasFeature — Test if the DOM implementation implements a specific feature
Descrierea
bool DOMImplementation::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.
Parametri
-
feature -
The feature to test.
-
version -
The version number of the
featureto test. In level 2, this can be either 2.0 or 1.0.
Valorile întoarse
Întoarce valoarea TRUE în cazul
succesului sau FALSE în cazul eșecului.
Erori/Excepții
Această metodă poate fi apelată în mod static, dar va emite
o eroare E_STRICT.
Exemple
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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