How can the issue of receiving HTML code instead of JSON data in an Ajax response be resolved in PHP?

To resolve the issue of receiving HTML code instead of JSON data in an Ajax response in PHP, you can set the appropriate headers in your PHP script to ensure that the response is interpreted as JSON data by the client-side code.

<?php
header('Content-Type: application/json');

// Your PHP code to generate JSON data here

echo json_encode($yourData);
?>