Bootstrap 5 modal form update PHP

Question

I`m trying to get modal form that can update values to the database.

The modal gets values from database but couldnt update. After clicked save button in modal, modal is closed but value doesnt updated.

I was looking solutions wrote in PHP but all the time i saw combine ajax. It is possibility to write modal update form in php?

index.php file:

    <div class="col-md-6">
    <h2>Added products</h2>
    <p>List added products to the base today:</p>
    <table class="table table-striped">
      <thead>
        <tr>
          <th>Name</th>
          <th>Model</th>
          <th>Date</th>
          <th>Actions</th>
        </tr>
      </thead>
      <tbody>
      <?php
        $query = "SELECT * FROM products";
        $resultProducts = mysqli_query($conn, $query);
        while($row = mysqli_fetch_array($resultProducts)){ ?>
        <tr>
          <td><?php echo $row['name']; ?></td>
          <td><?php echo $row['model']; ?></td>
          <td><?php echo $row['date']; ?></td>
          <td>
            <!-- Button to Open the Modal -->
            <a href="update.php?id=<?php echo $row['id']; ?>" class="btn btn-success" data-bs-toggle="modal" data-bs-target="#myModal<?php echo $row['id']; ?>">Edit</a>
            <a href="delete.php?id=<?php echo $row['id']; ?>" class="btn btn-danger">Delete</a>
            <!-- The Modal -->
                  <div class="modal" id="myModal<?php echo $row['id']; ?>">
                    <div class="modal-dialog modal-lg">
                      <div class="modal-content">

                        <!-- Modal Header -->
                        <div class="modal-header">
                          <h4 class="modal-title">Adding</h4>
                          <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
                        </div>

                        <!-- Modal body -->
                        <div class="modal-body">
                          <form action="update.php" method="POST">
                          <div class="form-group">
                            <input type="text" class="form-control" placeholder="Name" name="name" value="<?php echo $row['name']; ?>"> </br>
                            <input type="text" class="form-control" placeholder="Model" name="model" value="<?php echo $row['model']; ?>"> </br>
                            <input type="text" class="form-control" placeholder="Date" value="<?php echo $row['date']; ?>">
                            </br>
                              <label for="comment">Description:</label>
                                <textarea class="form-control" rows="5" name="description" value="<?php echo $row['description']; ?>"></textarea>
                        </div>

                        </br>
                        <div id="contentUpload">
                        <form method="POST" action="" enctype="multipart/form-data">
                        <input type="file" name="uploadfile" value=""/>
                        <button type="submit" name="upload">UPLOAD PHOTO</button>
                        </form>
                        </div>
                        <!-- Modal footer -->
                        <div class="modal-footer">
                          <button type="submit" class="btn btn-success" data-bs-dismiss="modal" name="update">Save</button>
                          <button type="button" class="btn btn-danger" data-bs-dismiss="modal">Close</button>
                        </div>
                      </form>
                      </div>
                    </div>
                  </div>
            </td>
            </tr>
  </div>
  <?php }?>
  </tbody>
  </table>
  </div>

update.php file

<?php

include ("connection.php");

if (isset($_GET['id'])) {
  $id = $_GET['id'];
  $query = "SELECT * FROM products WHERE id = $id";
  $result = mysqli_query($conn, $query);
  if (mysqli_num_rows($result) == 1) {
    //die (mysqli_error($conn));
    $row = mysqli_fetch_array($result);
    $name = $row['name'];
    $model = $row['model'];
    $description = $row['description'];
    $photo = $row['photo'];
    }
  }
  //echo "Delete";

  if (isset($_POST['update'])) {
    $id = $_GET['id'];
    $name = $_POST['name'];
    $model = $_POST['model'];
    $description = $_POST['description'];

    $query = "UPDATE products SET name = '$name', model = '$model', description ='$description' WHERE id = $id";
    mysqli_query($conn, $query);
    $_SESSION['message'] = 'Product updated';
    $_SESSION['message_type'] = 'success';
    header("Location: index.php");
    }
?>