yii\console\controllers\HelpController::validateControllerClass PHP Метод

    protected function validateControllerClass($controllerClass)
    {
        if (class_exists($controllerClass)) {
            $class = new \ReflectionClass($controllerClass);
            return !$class->isAbstract() && $class->isSubclassOf('yii\\console\\Controller');
        } else {
            return false;
        }
    }