<?php require '../../../vendor/autoload.php'; use Ozdemir\Datatables\Datatables; use Ozdemir\Datatables\DB\MySQL; class myClass { function ajax() { include "../../_config.php"; $dt = new Datatables(new MySQL($config), $this); $dt->query("Select film_id, title, description, rating, length from film"); $dt->edit('description', "\$1", 'sample_callback(film_id), strtolower(title)'); echo $dt->generate(); } function sample_callback($data) { return "returned film id: " . $data; } } $my_class = new myClass(); $my_class->ajax();