Check for Ajax request in CodeIgniter
ajax, codeigniter, php
Solution
You can use `$this->input->is_ajax_request()` from the input class:
if (!$this->input->is_ajax_request()) {
exit('No direct script access allowed');
}
Problem
I'm in a PHP script and I want to check whether the request is an Ajax request. (Basically to NOT allow direct script access, other than Ajax calls.) So, I'm defining `IS_AJAX` somewhere in the main `index.php` file: ``` define('IS_AJAX', isset($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest'); ``` And then checking it at the top of my script: ``` if (!IS_AJAX) exit('No direct script access allowed'); ``` Since I'm new to CodeIgniter, I would like to know: - Is there any such built-in functionality? - Is there a more elegant way to do it?