What is the main issue with using jQuery UI Sortable with mySQL in PHP?

The main issue with using jQuery UI Sortable with mySQL in PHP is that the order of the items in the database may not be updated to reflect the new order after sorting. To solve this issue, you need to update the database with the new order of the items after they have been sorted using jQuery UI Sortable.

// Assuming you have a table named 'items' with columns 'id' and 'order'
// Connect to your database
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database";

$conn = new mysqli($servername, $username, $password, $dbname);

// Get the new order of items from the POST request
$newOrder = $_POST['order'];

// Update the order of items in the database
foreach($newOrder as $key => $id) {
    $sql = "UPDATE items SET `order` = $key WHERE id = $id";
    $conn->query($sql);
}

// Close the database connection
$conn->close();