How can I redirect a 404 Error in a custom 404 page using Codeigniter?

Question

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 possibl

Answer 1

First open routes.php in the application/config folder and set a custom controller name.

 $route['404_override'] = 'custom404'; //custom404 is class name. 

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 custom404 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 
} 
 } 
 ?> 

Create a view file with name 'error_404.php' with your custom message. That is all you need to do and will be having your custom 404 page now.

Answer 2

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.

Answer 3

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.

Answer 4

No need to define any complexity. The process is very simple. First, go to your application->config->routes.php file and change this with your controller's function, where you simply load the header, footer, and 404.php page.

$route['404_override'] = 'welcome/_404';

Then come to your controller's page

function _404(){
$this->load->view("header");
$this->load->view("404");
$this->load->view("footer");

}

The same question is also available here Display a view for 404 error in CodeIgniter

Answer 5

For a simple solution, go to your "error_404.php" file in "application/errors/" directory and put this code at the beginning of the file:

header("Location:".base_url());

It'll redirect your 404 page to home page.

Answer 6

Very very very very more simple solution...
Just edit /application/views/error_404.php with your custom 404 page :)