FormElement::valueCallback
public static function FormElement::valueCallback
public static FormElement::valueCallback(&$element, $input, FormStateInterface $form_state)
Determines how user input is mapped to an element's #value property.
Parameters
array $element: An associative array containing the properties of the element.
mixed $input: The incoming input to populate the form element. If this is FALSE, the element's default value should be returned.
\Drupal\Core\Form\FormStateInterface $form_state: The current state of the form.
Return value
mixed The value to assign to the element.
Overrides FormElementInterface::valueCallback
File
- core/lib/Drupal/Core/Render/Element/FormElement.php, line 90
Class
- FormElement
- Provides a base class for form element plugins.
Namespace
Drupal\Core\Render\ElementCode
public static function valueCallback(&$element, $input, FormStateInterface $form_state) { return NULL; }
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https://api.drupal.org/api/drupal/core!lib!Drupal!Core!Render!Element!FormElement.php/function/FormElement::valueCallback/8.1.x