public static function CardNumber::valueCallback in Creditfield Form Element 8

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 FormElement::valueCallback

File

src/Element/CardNumber.php, line 61

Class

CardNumber

Provides a one-line credit card number field form element.

Namespace

Drupal\creditfield\Element

Code

public static function valueCallback(&$element, $input, FormStateInterface $form_state) {
  if ($input !== FALSE && $input !== NULL) {

    // Equate $input to the form value to ensure it's marked for
    // validation.
    return str_replace([
      "\r",
      "\n",
    ], '', $input);
  }
}