public function actionIndex($_lang = null)
{
$request = Yii::$app->request;
$cookies = $request->cookies;
$locales = Lang::getLocaleList(false);
if ($_lang !== null && isset($locales[$_lang])) {
Yii::$app->response->cookies->add(new Cookie(['name' => 'language', 'value' => $_lang]));
return $this->goHome();
} elseif (isset($cookies['language'])) {
Yii::$app->language = ArrayHelper::getValue($locales, $cookies['language']->value);
}
return $this->actionView('readme');
}
<?php
\yii\base\Event::on('yii\\base\\Controller', 'beforeAction', function ($event) {
/** @var yii\filters\ContentNegotiator $negotiator */
$negotiator = Yii::createObject(['class' => 'yii\\filters\\ContentNegotiator', 'languages' => \common\models\Lang::getLocaleList()]);
/** @var yii\base\ActionEvent $event */
$negotiator->attach($event->action);
$negotiator->negotiate();
});