I just updated my system to use PHP 8.1 (up from 7.4) and hit the following error:
Deprecated: strcasecmp(): Passing null to parameter #1 ($string1) of type string is deprecated in /var/www/my.wiki/public_html/mediawiki-1.38.2/includes/session/CookieSessionProvider.php on line 99
Does anyone know how I could correct this? (Or is Mediawiki incompatible with recent versions of PHP?)