PHP 8 Server 500 Error Issues

ℹ️ Support
1

When running PHP 8 the unsubscribe and update preferences links in my emails do not work, and cause Server 500 errors:

  • To unsubscribe from this list visit Unsubscribe
  • To update your preferences visit this link

Is there a solution to this issue?

2

@keeenone Please explain which versions of php and phplist you are using. I don’t have a problem using php 8.1 and phplist 3.6.7 with the preferences page.

It would help if you can diagnose the problem by reviewing the php or web server error logs.

3

See below, and I am using the current stable version of PHP 8 in cPanel, and it’s not PHP 8.1, but PHP 8.0.15

phpList ltd. - v3.6.7

PHP
Version 8.0.15

Database
Version 5.5.5-10.5.15-MariaDB

4

Actually, I traced this down to an issue with a mod-rewrite in my .htaccess file in my root directory:

Remove index.php from root URL

RewriteCond %{THE_REQUEST} ^[A-Z]{3,9}\ /index.(php|html) [NC]
RewriteRule ^index.php$ https://www.mysite.com/ [R=301,L]

For some reason the behavior changed after switching to php 8. After removing this the links all work fine.

5

@keeenone Thanks. That looks to be specific to your installation rather than phplist directly.