<?php /** * Created by PhpStorm. * User: Ivan * Date: 20.01.2016 * Time: 9:33 */ $locator = new yii\di\ServiceLocator(); $locator->set('session', yii\web\Session::class); $session = $locator->get('session'); $language = $session->get('language', 'en-US'); $config['language'] = $language;