Number

Provides a form element for numeric input, with special numeric validation.

Properties:

• #default_value: A valid floating point number.
• #min: Minimum value.
• #max: Maximum value.
• #step: Ensures that the number is an even multiple of step, offset by #min if specified. A #min of 1 and a #step of 2 would allow values of 1, 3, 5, etc.

Usage example:

$form['quantity'] = array(
  '#type' => 'number',
  '#title' => $this->t('Quantity'),
);

Plugin annotation

@FormElement("number")

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\Number

See also

\Drupal\Core\Render\Element\Range

\Drupal\Core\Render\Element\Textfield

File

core/lib/Drupal/Core/Render/Element/Number.php, line 33

Namespace

Drupal\Core\Render\Element

Members