Mini Shell

<?php
    include 'db/database.php';              
    $sahakorn = $_POST['sahakorn'];
    $year = $_POST['year'];
    $formula = $_POST['formula'];
    $fertilizer = $_POST['fertilizer'];
    $sql_report = "SELECT * FROM formula  WHERE `formulaID`='$formula' ";
    $result_report = mysqli_query($link, $sql_report);
    $row = mysqli_fetch_assoc($result_report); 
                    
     //สูตรคำนวน
    $calculate = $fertilizer*50;
    $calculate1 = $row['46-0-0']/50;
    $calculate2 = $row['18-46-0']/50;
    $calculate3 = $row['0-0-60']/50;
    $result1 = $calculate*$calculate1;
    $result2 = $calculate*$calculate2;
    $result3 = $calculate*$calculate3;
    $result_sum = $result1+$result2+$result3;          
    
       //เช็คชือซ้ำหรือไม่
    $sql_formula = "SELECT sahakornID,year,formulaID FROM sahakorn_process WHERE sahakornID ='$sahakorn' and year ='$year' and formulaID = '$formula' ";
    $result_formula = mysqli_query($link, $sql_formula);
    $is_formula = mysqli_num_rows($result_formula);
    if ($is_formula == 1) {
       $sql_update = "UPDATE `sahakorn_process` SET  `sahakornID`='$sahakorn',`year`='$year',`formulaID`='$formula' ,`sack`='$fertilizer' ,`46-0-0`='$result1' ,`18-46-0`='$result2' ,`0-0-60`='$result3'  WHERE (`formulaID`='$formula') and (`sahakornID`='$sahakorn') and (`year`='$year')";
       $result_update = mysqli_query($link, $sql_update);
       
         if ($result_update) {
            header('Content-Type: application/json');
            echo json_encode(array('status' => 'success','message' => 'แก้ไขข้อมูลเรียบร้อยแล้ว'));
      } else {
            header('Content-Type: application/json');
            $errors = "เกิดข้อผิดผลาดไม่สามารถบันทึกข้อมูลได้" . mysqli_error($link);
            echo json_encode(array('status' => 'danger','message' => $errors));
             }
    }else {
        
       $sql_insert = "INSERT INTO `sahakorn_process` (`sahakornID`,`year`,`formulaID`,`sack`,`46-0-0`,`18-46-0`,`0-0-60`) VALUES 
              ('$sahakorn','$year','$formula','$fertilizer','$result1','$result2','$result3')";
       $result_insert = mysqli_query($link, $sql_insert);
    
         if ($result_insert) {
            header('Content-Type: application/json');
            echo json_encode(array('status' => 'success','message' => 'บันทึกข้อมูลเรียบร้อยแล้ว'));
         } else {
            header('Content-Type: application/json');
            $errors = "เกิดข้อผิดผลาดไม่สามารถบันทึกข้อมูลได้" . mysqli_error($link);
            echo json_encode(array('status' => 'danger','message' => $errors));
    }
         
        
        }
    ?>