public static Html::getId($id)
Prepares a string for use as a valid HTML ID.
Only use this function when you want to intentionally skip the uniqueness guarantee of self::getUniqueId().
Parameters
string $id: The ID to clean.
Return value
string The cleaned ID.
See also
self::getUniqueId()
File
- core/lib/Drupal/Component/Utility/Html.php, line 215
Class
- Html
- Provides DOMDocument helpers for parsing and serializing HTML strings.
Namespace
Drupal\Component\Utility
Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | public static function getId($id) { $id = str_replace([' ', '_', '[', ']'], ['-', '-', '-', ''], Unicode::strtolower($id)); // As defined in http://www.w3.org/TR/html4/types.html#type-name, HTML IDs can // only contain letters, digits ([0-9]), hyphens ("-"), underscores ("_"), // colons (":"), and periods ("."). We strip out any character not in that // list. Note that the CSS spec doesn't allow colons or periods in identifiers // (http://www.w3.org/TR/CSS21/syndata.html#characters), so we strip those two // characters as well. $id = preg_replace('/[^A-Za-z0-9\-_]/', '', $id); // Removing multiple consecutive hyphens. $id = preg_replace('/\-+/', '-', $id); return $id;} |
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