Old Yii 1 site moved from PHP 5.6 to PHP 8.2
Problem. A security problem in PHP made the client want to update PHP. The site was old: Yii 1 and PHP 5.6. After the update to PHP 8.2, everything broke.
What I did. I fixed the site modules that used old, removed options, and started everything on PHP 8.2.
Result. The security problem is closed, and the site works on a newer PHP version.