Hidden

Provides a form element for an HTML 'hidden' input element.

Specify either #default_value or #value but not both.

Properties:

• #default_value: The initial value of the form element. JavaScript may alter the value prior to submission.
• #value: The value of the form element. The Form API ensures that this value remains unchanged by the browser.

Usage example:

$form['entity_id'] = array('#type' => 'hidden', '#value' => $entity_id);

Plugin annotation

@FormElement("hidden")

Hierarchy

• class \Drupal\Component\Plugin\PluginBase implements DerivativeInspectionInterface, PluginInspectionInterface
  • class \Drupal\Core\Plugin\PluginBase uses DependencySerializationTrait, StringTranslationTrait
    • class \Drupal\Core\Render\Element\RenderElement implements ElementInterface
      • class \Drupal\Core\Render\Element\FormElement implements FormElementInterface
        • class \Drupal\Core\Render\Element\Hidden

See also

\Drupal\Core\Render\Element\Value

File

core/lib/Drupal/Core/Render/Element/Hidden.php, line 27

Namespace

Drupal\Core\Render\Element

Members