What are some best practices for handling the reordering of navigation items using drag-and-drop functionality in PHP?

When handling the reordering of navigation items using drag-and-drop functionality in PHP, it is important to update the order of the items in the database based on the new order set by the user. This can be achieved by capturing the new order of the items through JavaScript and sending it to a PHP script via AJAX. The PHP script should then update the order of the items in the database accordingly.

<?php
// Assuming the new order of items is sent via POST request
$newOrder = $_POST['newOrder'];

// Update the order of items in the database
foreach ($newOrder as $index => $itemId) {
    // Update the order of the item with $itemId to $index
    // Example SQL query: UPDATE navigation_items SET order = $index WHERE id = $itemId
}

// Return a success response
echo json_encode(['message' => 'Navigation items reordered successfully']);
?>