When you are using Yii2's validation rules within a model, for example:
[['foo','bar'], 'integer],
Obviously ['foo','bar']
is an array, which I know you can use.
But can do pass a multi-dimensional array like this:
$this->numbers = [1,2,3];
[['foo','bar','numbers'], 'integer]
Will Yii2 accept this and check the correct data or will it test the value and return an error because numbers
is an array?