Multilingual 404

Hello forum,

I need some help to modify my custom error.php to show a 404 depending on the language in my bi-lingual development site (NL and FR).

In a monolingual site (f.i. NL) I always use this error.php together with a hidden menu with a menu-item "niet-gevonden" set to NL, linked to the 404-article set to NL, and this works like expected.



<?php

   defined('_JEXEC') or die;

   if (($this->error->getCode()) == '404') {

      header("HTTP/1.0 404 Not Found");

      echo file_get_contents(JURI::root().'/niet-gevonden');

      exit;}

?>

Now with 2 languages (NL and FR) I have created two menu-items linked to each appropriate article in the hidden menu and this error.php:



<?php

   defined('_JEXEC') or die;

   if (($this->error->getCode()) == '404') {

       header("HTTP/1.0 404 Not Found");

       $lang = JFactory::getLanguage();

       $result = $lang->getTag();

   if ($result=="nl-NL") { 

      echo file_get_contents(JURI::root().'/niet-gevonden');

      exit;}

   if ($result=="fr-FR") { 

      echo file_get_contents(JURI::root().'/non-trouve');

      exit;}

}

?>

But now only the NL-404 is shown and the expected FR-404 shows an empty page.

My PHP-knowledge is very poor, in fact zero, so I was inspired to this older topic: https://joomla.stackexchange.com/questions/15141/how-to-create-a-custom-404-error-page-for-every-language but obviously I missed something.

Any suggestions ?
Joomla 4.3.4 – PHP 8.1.21

Thanks

<?php use Joomla\CMS\Factory; use Joomla\CMS\Uri\Uri; $errorPages = ['nl-NL' => 'nl/niet-gevonden', 'en-GB' => 'en/not-found', 'fr-FR' => 'fr/pas-trouve']; $languageTag = Factory::getLanguage()->get('tag'); if ($this->error->getCode() == '404') { header("HTTP/1.0 404 Not Found"); echo file_get_contents(URI::root() . '/' . $errorPages[$languageTag]); exit; } ?>