多条件查询
$users = User::whereRaw('age > ? and votes = 100', array(25))->get();
$res = DB::table('tbl_user')
          ->whereRaw('id>=? and name = ?',[12,'jack'])
          ->get();
$users = User::whereRaw('age > ? and votes = 100', array(25))->get();
$res = DB::table('tbl_user')
          ->whereRaw('id>=? and name = ?',[12,'jack'])
          ->get();