getLastError() публичный статический Метод

Get the last error message from the current datasource
public static getLastError ( ) : string
Результат string Error message (or empty string)
Документация по классу Gatekeeper
Пример #1
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 public function deleteGroupAction(int $id)
 {
     if (Gatekeeper::deleteGroupById($id)) {
         $this->flasher->success('Group deleted');
     } else {
         $this->flasher->error('Group not deleted.');
         if ($this->site['debug']) {
             $this->flasher->error(Gatekeeper::getLastError());
         }
     }
     $this->redirect('/users/groups');
 }