Kind sirs, I'm using Codeigniter to build a blog. I might need a way to redirect a 404 error into a custom 404 page. Just like what Abduzeedo.com's 404 page. Is it possible to control this by using routes? Or should i use controllers to direct it to another view? Thanks very much!
there is another way which I use: by overriding Exception core class of Codeigniter. Firstly make sure your config file(system/application/config/config.php) subclass prefix is as following
$config['subclass_prefix'] = 'MY_';
Then make a file named MY_Exceptions.php in system/application/libraries. Then override the function show_404() function here as follows.
class MY_Exceptions extends CI_Exceptions{
function MY_Exceptions(){
parent::CI_Exceptions();
}
function show_404($page=''){
$this->config =& get_config();
$base_url = $this->config['base_url'];
$_SESSION['error_message'] = 'Error message';
header("location: ".$base_url.'error.html');
exit;
}
}
Now Error controller will be your error page, where the page will be redirected for 404 error.
Custom 404 page is create by using the following 3 steps,
Step 1: First open routes.php in application/config and set a custom controller name,
$route['404_override'] = 'my404'; //my404 is class name.
Step 2: Create a new controller and write the following code in it. The code is very easy to understand. So I am not going to explain it here,
<?php
class my404 extends CI_Controller
{
public function __construct()
{
parent::__construct();
}
public function index()
{
$this->output->set_status_header('404');
$data['content'] = 'error_404'; // View name
$this->load->view('index',$data);//loading in my template
}
}
?>
Step 3: Create a view file with name 'error_404.php' with your custom message.