Yii2 - 模型规则“必需”失败

Question

I have simple form, which collects: name, city, street and post_code. These are rules that I have:

return [
    [['city', 'street', 'name'], 'string', 'max' => 255],
    [['post_code'], 'string', 'max' => 6],
    ['post_code', 'match', 'pattern' => '/^([0-9]{2})(-[0-9]{3})?$/i'],
    [['name', 'city', 'post_code', 'street'] => 'required']
];

It returns me error "Illegal offset type" and marks first line to be faulty, but when I comment the last line, it works fine (but of course doesn't require values to be written). What can it be caused by?

Answer 1

Last line should be

[['name', 'city', 'post_code', 'street'], 'required']