$category->lang->alias ] ); $items[$url] = Html::a( $category->lang->title, $url ); } echo Html::ul( $items, [ 'encode' => false, 'class' => "nav nav-pills nav-stacked", 'item' => function($item, $index){ $class = ''; if ($index === Yii::$app->request->getUrl()){ $class = "active"; } return "

" . $item . "

"; } ] ); ?>