public function FormStateInterface::prepareCallback

public FormStateInterface::prepareCallback($callback)

Converts support notations for a form callback to a valid callable.

Specifically, supports methods on the form/callback object as strings when they start with ::, for example "::submitForm()".

Parameters

string|array $callback: The callback.

Return value

array|string A valid callable.

File

core/lib/Drupal/Core/Form/FormStateInterface.php, line 588

Class

FormStateInterface

Provides an interface for an object containing the current state of a form.

Namespace

Drupal\Core\Form

Code

public function prepareCallback($callback);