public static function __static()
 {
     self::$questions = QuestionCaptchaConfig::load()->get_questions();
 }
 private function init()
 {
     $this->lang = LangLoader::get('common', 'QuestionCaptcha');
     $this->config = QuestionCaptchaConfig::load();
 }
 public function __construct()
 {
     $this->case_sensitive = QuestionCaptchaConfig::load()->is_case_sensitive();
 }