public function FormStateValuesTrait::getValue in Drupal 9

Same name and namespace in other branches

1. 8 core/lib/Drupal/Core/Form/FormStateValuesTrait.php \Drupal\Core\Form\FormStateValuesTrait::getValue()

Implements \Drupal\Core\Form\FormStateInterface::getValue()

File

core/lib/Drupal/Core/Form/FormStateValuesTrait.php, line 24

Class

FormStateValuesTrait

Provides methods to manage form state values.

Namespace

Drupal\Core\Form

Code

public function &getValue($key, $default = NULL) {
  $exists = NULL;
  $value =& NestedArray::getValue($this
    ->getValues(), (array) $key, $exists);
  if (!$exists) {
    $value = $default;
  }
  return $value;
}