for($i=29; $i >= 0; $i--){
        $total = array();
        // $time = strtotime("2010.12.11");
        // $final = date("Y-m-d", strtotime("-".$i." days"));
        $query = "SELECT
        ( (a.replacement / b.counter) * (b.cost * b.price)) AS total
        FROM sppct a
        LEFT JOIN sppct_detail b ON a.id = b.idsppct
        WHERE a.plant = '$pl' AND a.part = '$kodepart' AND a.line = '$kodeline' AND DATE_FORMAT(a.datetime, '%Y-%m-%d') = DATE_ADD(CURDATE(), INTERVAL -$i DAY)";
        // echo $query."<br><br>";
        $que = mysqli_query($koneksi, $query) or die(mysqli_error($koneksi));
        $count = mysqli_num_rows($que);
        if($count == 0){
          $total [] = 0;
        }else{
          while($res = mysqli_fetch_array($que)){
            $total[] = $res['total'];
            // echo $res['total'];
          }
        }
        // print_r($total);
        // echo " | ".$x." <br>";
        // $x++;
        ${'totalcostpart' . $kodepart}[] = number_format(array_sum($total),2,".","");
      }