One of the must have in CodeIgniter is a custom 404 error page.
It's really easy to do and it makes huge impact for the user.
1. Create a new Controller
Create a new controller custom404.php and fill it with the following code:
Please note this code might vary according to your application, usually you won't have to change anything.
class custom404 extends CI_Controller
public function __construct()
public function index()
$this->data['content'] = 'custom404view'; // View name
In the code above you can see what will be our next step...
2. Create the view
Create the file custom404view.php in your views folder and fill with HTML.
3. Edit your Routes file
Last but not least, edit your /application/config/routes.php adding the following line:
$route['404_override'] = 'custom404'; // Controller name
The value for this route will be the name of the controller you've created in the first step.
I hope you found this tutorial helpful 😉