get nearby from longitude and latitude in laravel
\DB::table("users")
->select("users.id", \DB::raw("6371 * acos(cos(radians(" . $this->lat . "))
* cos(radians(users.latitude))
* cos(radians(users.longitude) - radians(" . $this->lng . "))
+ sin(radians(" .$this->lat. "))
* sin(radians(users.latitude))) AS distance"))
->having('distance', '<', $this->rad)
->first();