Yii2：如何为checkboxList（）中的每个复选框分配一个ID

Question

我有一个用Yii2创建的checkboxList，我需要为每个复选框分配一个ID（因此我可以将其与jQuery一起使用）。但是我不知道该怎么办。

<?
$cities ArrayHelper::map(Cities::find()->all(), 'city_id', 'city_name');
echo Html::checkboxList(
    'cities'
    null,
    $cities,
    [
        'itemOptions' => [
            'id' => $cities->city_id // MY PROBLEM IS IN THIS LINE,
        ],
    ]
) ?>

Answer 1

<?
$cities ArrayHelper::map(Cities::find()->all(), 'city_id', 'city_name');
echo Html::checkboxList(
    'cities'
    null,
    $cities,
    [
        'itemOptions' => [
            'id' => $cities->city_id // MY PROBLEM IS IN THIS LINE,
        ],
    ]
) ?>

应该是

<?= Html::checkboxList('cities', null, $cities) ?>