public FormStateValuesTrait::hasValue($key)
Implements \Drupal\Core\Form\FormStateInterface::hasValue()
File
- core/lib/Drupal/Core/Form/FormStateValuesTrait.php, line 61
Class
- FormStateValuesTrait
- Provides methods to manage form state values.
Namespace
Drupal\Core\Form
Code
public function hasValue($key) {
$exists = NULL;
$value = NestedArray::getValue($this->getValues(), (array) $key, $exists);
return $exists && isset($value);
}
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