Laravel join or left join queries AS different name

There are many situations where you need to join same table, but must have different names (you can define this as alias). Below is a simple code snippet to show how you can join same table with different name.

$limit = 10;
$page = 1;
$groups = DB::table('person')
       ->leftJoin('users as for_user', function ($join) {
           $join->on('for_user.id', '=', 'person.for_id')->where("for_user.id", "=", 10);
       })
       ->join('users as by_user', function ($join) {
           $join->on('by_user.id', '=', 'person.by_id');
       })
       ->where('person.status', '=', 1)
       ->select('person.id', 'person.first_name', 'by_user.first_name')
       ->limit($limit)->offset($page * $limit)
       ->get();