$dean_ids = Auth::user()->dean_id; // "9,11" $subjects = Subject::whereIn('dean_id', [$dean_ids])->select('id')->get();
仅返回“9”的数据但是当我这样尝试时:
$subjects = Subject::whereIn('dean_id', [9,11])->select('id')->get(); //it returns all data that what i want.
慕姐4208626