Hi,

If you try to create a new group on PHP 8, array_merge(): Argument #1 must be of type array, null given

To fix it:

administrator/components/com_k2/views/usergroup/view.html.php, line 51:

$categories_option = $categories;

if ($categories_option) {
    $categories_options = array_merge($categories_option, $categories);
}

Error impression with  @ doesn't work as before on PHP 8. PHP 8.0:  Error Suppression operator does not silent fatal errorshttps://php.watch/versions/8.0/fatal-error-suppression


Best Regards

... hmmm ...$categories_options is not used.... it could be removed.

Regards

PR sent: github.com/getk2/k2/pull/545