Problème avec PHP 8.1.16

[stf4-Sony]

Bonjour

Je rencontre des problèmes d'affichage du plugin

Deprecated: substr_count(): Passing null to parameter #1 ($haystack) of type string is deprecated in /www//plugins/ExtendedDescription/include/events.inc.php on line 331

Merci a qui aura une solution pour corriger le problème.

BD

[git-emil]

Hi!

I'm facing the very same error message after upgrading from v12 to v13 and switching to php 8.1.
After changing the code to this:

if (substr_count($pictures[$i]['name'] ?? "", $conf['ExtendedDescription']['not_visible']))

the problem seems to be solved. But I am not 100% sure; the source code is missing meaningful comments.

Emil