Yii2 自定义独立验证器

?php
/**
 * author     : forecho <caizhenghai@gmail.com>
 * createTime : 2015/7/1 14:54
 * description:
 */

namespace common\helps;


use yii\validators\Validator;

class ArrayValidator extends Validator
{

    public function validateAttribute($model, $attribute)
    {
        if (!is_array($model->$attribute)) {
            $this->addError($model, $attribute, $attribute . ‘必须是一个数组‘);
        }
    }
}

public function rules()
{
    return [
        ...
        [‘kind_ids‘, ‘common\helps\ArrayValidator‘], // 自定义验证
        ...
    ];
}