function InputDemo::submitForm

File

modules/form_api_example/src/Form/InputDemo.php, line 332

Class

InputDemo

Implements InputDemo form controller.

Namespace

Code

public function submitForm(array &$form, FormStateInterface $form_state) {
  // Find out what was submitted.
  $values = $form_state->getValues();
  foreach ($values as $key => $value) {
    $label = $form[$key]['#title'] ?? $key;
    // Many arrays return 0 for unselected values so lets filter that out.
    if (is_array($value)) {
      $value = array_filter($value);
    }
    // Only display for controls that have titles and values.
    if ($value && $label) {
      $display_value = is_array($value) ? preg_replace('/[\\n\\r\\s]+/', ' ', print_r($value, 1)) : $value;
      $message = $this->t('Value for %title: %value', [
        '%title' => $label,
        '%value' => $display_value,
      ]);
      $this->messenger()
        ->addMessage($message);
    }
  }
}