yii active_form select
<?php
$items = ['0' => 'Активный', '1' => 'Отключен','2'=>'Удален'];
$items = Category::find()->select('name')->where(['status' => STATUS_ACTIVE])->asArray()->indexBy('id')->column();
$params = ['prompt' => 'Выберите статус...'];
echo $form->field($model, 'status')->dropDownList($items, $params);
?>