Cacti Ubuntu LTS problems with PHP8?

[matthys70]

I just upgraded from Ubuntu 20.04.5 LTS to Ubuntu 22.04.1 LTS and noticed many problems with Cacti

This has been installed with Ubuntu 22.04.1 LTS:
Cacti = cacti (1.2.19+ds1-2ubuntu1)
PHP = PHP 8.1.2 (cli) (built: Aug 17 2022 13:08:39) (NTS)
MySQL = Server version: 8.0.30-0ubuntu0.22.04.1 (Ubuntu)

I disabled the cron-job for the moment because of high CPU load on MySQL (because of inserting data into database?), but also noticed these error messages in the log:
2022-09-19 14:20:15 - CMDPHP PHP ERROR Backtrace: (/clog.php[27]:include(), /include/auth.php[28]:require_once(), /include/global.php[438]:html_escape(), /lib/html.php[1069]:str_replace(), CactiErrorHandler())
2022-09-19 14:20:15 - ERROR PHP : str_replace(): Passing null to parameter #3 ($subject) of type array|string is deprecated in file: /usr/share/cacti/site/lib/html.php on line: 1069

Are there still parts not ready for PHP 8.1?

What to do .. wait for an upgrade of Cacti Ubuntu package?

Thanks,
Matthijs

[TheWitness]

Grab the 1.2.x branch from GitHub, or go with the 1.2.22 release. There is one minor bug in 1.2.22 that requires pulling the lib/functions.php from the 1.2.x branch, but otherwise everything is working for me an I'm using PHP 8.1.10 (latest).