สอบถามค่ะ คำสั่ง UPDATE sql แล้วข้อมูลใหม่ไม่เข้าตาราง ไม่ขึ้น error

<?php
session_start();
require ('dbms.php');

if(!isset($_SESSION['login'])){
	header('Location: index.php?login=noLOGIN');
	exit();
}

?>
<h2>Hello <?php  echo $_SESSION['username']; ?> </h2>
<h2>Edit Todolist</h2>

<?php

$sql_incom = "SELECT * FROM tb_note WHERE user_id = '".$_SESSION['id']."' AND  id = '".$_GET['note_id']."' ";
$result_incom = mysqli_query($conn,$sql_incom);


if($result_incom->num_rows >0 ){

  while($row = mysqli_fetch_assoc($result_incom)){
  	
var_dump($row);
  	echo '<form action="conedit.php" method="post">';
	echo '<label>header: </label> <br>';
	echo  '<input type="text"  name="header" value="'.$row["header"].'"> <br>';
	echo '<label>detail: </label>  <br>';

	echo  '<textarea type="text" name="detail" cols="66" rows="10">'.$row["detail"].'</textarea> <br>' ;

	echo '<label>priority:</label><br>';
	echo '<input type="text"  name="type" value="'.$row["type"].'"><br>';

	echo '<input type="date"  name ="time" value="'.$row["timee"].'"><br>';

	echo '<input type="hidden" name="note_id" value="'.$row["id"].'">'; 

	echo '<button type="edit" name="editbtn"> submit</button>';
echo '</form> ';

          }
        }
?>

    <?php
session_start();
require ('dbms.php');

if(!isset($_SESSION['login'])){
	header('Location: index.php?login=noLOGIN');
	exit();
}

?>


<h2>Hello <?php  echo $_SESSION['username']; ?> </h2>
<h2>Add Todolist</h2>
 

<form action="conadd.php" method="post">

  <label>header: </label> <br>
   <input type="text"  name="header" > <br>
	<label>detail: </label>  <br>

	<textarea  type="text" name="detail" ></textarea> <br>
	<label>priority:</label><br> 
	<input type="text"   name="type" ><br>

	<input type="date"  name ="time" ><br>

	<button type="submit" name="addtask"> submit</button>
</form>

<hr>

  <?php
$sql_incom = "SELECT * FROM tb_note WHERE user_id = '".$_SESSION['id']."' ";
$result_incom = mysqli_query($conn,$sql_incom);

if($result_incom->num_rows >0 ){

  while($row = mysqli_fetch_assoc($result_incom)){

           echo "<li>";
           echo '<input type="checkbox"><label>'.$row["header"].'</label><input type="text">';
           echo  $row["detail"];
           echo $row["type"];
            echo $row["timee"];
            ?>
            <a href="editpage.php?note_id=<?php echo $row["id"]; ?>"> Edit</a>
            <?php
           echo "</li>";
          }
        }
          ?>


    <a href="logout.php">Logout </a>

<?php
session_start();
include ('dbms.php');

if(isset($_POST['editbtn'])){

    $id = $_POST['note_id'];
    $header =$_POST['header'];
    $detail =$_POST['detail'];
    $time =  $_POST['time'];
    $type =  $_POST['type'];
		
    if($header =="" || $detail == "" || $type =="" ){
      header('Location: home.php?note=fail');

			exit();
		}
		//$user_id = $_SESSION['id'];
		$sql_comm = 
		"UPDATE tb_note
		 SET header = '$header',
		 detail ='$detail',
		 timee = '$time',
		 type = '$type',
		  WHERE id = '$id';";

	if ($conn->query($sql_comm) === TRUE) {
    
    	header('location: home.php?add=true');
  		  exit();
	} 
	else {

    	echo "Error ".$sql_comm ;
		}
	}
	
?>