codeigniter 3.0 custom 404 not found error page

Question

My problem is about custom error pages after upgrading to Codeigniter 3.0.

I used to have a Errors controller which handled 404 error page of the websi

Answer 1

In Codeigniter 3, instead of calling show_404(), I just redirected to the custom error controller function.

e.g. for the above scenario

if (404 condition...) {
    redirect("my404");
}

Answer 2

It's not working in codeigniter 3, I overwrite the default view (application/views/errors/html/error_404.php) and added my custom view, now show_404() is working fine.

Answer 3

that is working good, but if redirect to an error, for example 404 with function show_404, your controller wont load your view, for a real 404 in the show_404 method, you have to go to the core of codeigniter and touch it.

\system\core\Common.php

this is an example of code:

function show_404(){
  $ci = get_instance();
  $ci->output->set_status_header(404);
  $ci->load->view('errors/error404_view');
  echo $ci->output->get_output();
  exit(4);
}

Answer 4

You need to set in application/config/routes.php the following route

$route['404_override'] = 'my404';

Then you need to create a new controller in your controllers directory (application/controllers/)

<?php 
class My404 extends CI_Controller 
{
 public function __construct() 
 {
    parent::__construct(); 
 } 

 public function index() 
 { 
    $this->output->set_status_header('404'); 
    $this->load->view('err404');//loading in custom error view
 } 
} 

And create an err404 view. Thats all!

Refer :Reserved Routes