trans

laravel/framework

The trans function translates the given translation key using your localization files:

echo trans('messages.welcome');

            return $key;

        }

        return trans($key, $replace, $locale);

    }

}

    public function message()

    {

        $message = trans('validation.enum');

        return $message === 'validation.enum'

            ? ['The selected :attribute is invalid.']

src/Illuminate/Validation/Rules/Enum.php