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+-- Forum: CodeIgniter 4 (https://forum.codeigniter.com/forumdisplay.php?fid=28)
+--- Forum: CodeIgniter 4 Support (https://forum.codeigniter.com/forumdisplay.php?fid=30)
+--- Thread: How to show 404 page in Codeigniter 4? (/showthread.php?tid=86922)
How to show 404 page in Codeigniter 4? - WateUhlerredyh - 02-27-2023
Although it may seem trivial, I am having difficulty with a question. Previously in Codeigniter 3, I utilized the show_404() function in any controller to display a 404 page. How can I achieve the same outcome in Codeigniter 4?
RE: How to show 404 page in Codeigniter 4? - datamweb - 02-27-2023
You can use the following command to display it.
PHP Code:
throw \CodeIgniter\Exceptions\PageNotFoundException::forPageNotFound();
But if you want to use show_404(), you can add the following code in file app/Common.php.
PHP Code:
<?php
use CodeIgniter\Exceptions\PageNotFoundException;
// Show 404 error
if (!function_exists('show_404')) {
function show_404(string $error_text): string
{
throw PageNotFoundException::forPageNotFound($error_text);
}
}
RE: How to show 404 page in Codeigniter 4? - kenjis - 02-27-2023
If you want to use CI3 features in CI4, you may find ci-3-to-4-upgrade-helper helpful.
For example, https://github.com/kenjis/ci3-to-4-upgrade-helper/blob/1.x/src/CI3Compatible/Core/Common.php#L52