There's a bug when I try to customized error page, an 404 page

There's a bug when I try to customized error page, an 404 page - Printable Version

+- CodeIgniter Forums (https://forum.codeigniter.com)
+-- Forum: Development (https://forum.codeigniter.com/forumdisplay.php?fid=6)
+--- Forum: Issues (https://forum.codeigniter.com/forumdisplay.php?fid=19)
+--- Thread: There's a bug when I try to customized error page, an 404 page (/showthread.php?tid=74925)

There's a bug when I try to customized error page, an 404 page - rikimahendra - 11-25-2019

Hi there's,
My case in CI 3.1.11

when I trry to set default 404_override route in config, its work for page when no function show_404() set on my controller.
BUT if I set function show_404() on my controller its will return default error page. I need to direct page if no id found on my site.

weirdly, when I try this :

when I set my error page on ```routes 404 override```, its not work. its always goes to default errors page CI.(views/errors/html/error_404.php).
(FIX I know how, because I set show_404() on controller, if i set show_404() on my controller its would be set default error , if im not set show_404(), so my error page would shown.)
when I change CI error page with mine, its work. BUT, when i try to put assets from my css, its turn "
Message: Call to undefined function base_url()".
then,
When I set
$ci = new CI_Controller(); $ci =& get_instance(); $ci->load->helper('url');
on that error page, then its will turn another error. which is "
Unable to locate the specified class: Session.php

SO, for now i set my only show_404() on my helper Big Grin

and delete your show_404() on your Common.php Big Grin

this my github : My issues on github

RE: There's a bug when I try to customized error page, an 404 page - rikimahendra - 12-03-2019

how about to set 404_override on your common.php show_404 function

if there's not 404_override set on config/route, so it will return your default error page, BUT...
if we set 404_override to our custom error page, its will direct into our page.

maybe, on show_404 function we can set a condition like that.

```
function show_404(){
if($route['404_override']==""){
//return your code of show_404 before;
}else{
return $route["404_override"]
}
}
```

so, we can easily use 404 function after set customize page on config/route.
hopefully be considered