如何在Yii框架中将菜单项设置为活动的？

use yii\widgets\Menu;

echo Menu::widget([
    'items' => [
        ['label' => '首页', 'url' => ['/site/index']],
        ['label' => '关于', 'url' => ['/site/about']],
        ['label' => '联系我们', 'url' => ['/site/contact']],
        // 其他菜单项...
    ],
]);

public function actionIndex()
{
    $this->view->params['activeMenu'] = '首页';
    return $this->render('index');
}

use yii\helpers\Html;

echo Menu::widget([
    'items' => [
        [
            'label' => '首页',
            'url' => ['/site/index'],
            'active' => isset($this->params['activeMenu']) && $this->params['activeMenu'] == '首页',
        ],
        [
            'label' => '关于',
            'url' => ['/site/about'],
            'active' => isset($this->params['activeMenu']) && $this->params['activeMenu'] == '关于',
        ],
        [
            'label' => '联系我们',
            'url' => ['/site/contact'],
            'active' => isset($this->params['activeMenu']) && $this->params['activeMenu'] == '联系我们',
        ],
        // 其他菜单项...
    ],
]);