hammerstringz

If you’ve enabled signatures for a group, they can be created in their account settings.  

Specifically domain.com/settings/signature/

PHP Requirements
PHP version 8.0.0 or greater cURL extension loaded DOM extension loaded. GD extension loaded. Multibyte String extension loaded. MySQLi extension loaded. OpenSSL extension loaded. Session extension loaded. SimpleXML extension loaded. XML Parser extension loaded. XMLReader extension loaded. XMLWriter extension loaded. Zip extension loaded. Exif extension loaded. GMP PHP extension loaded.  128M memory limit. No Suhosin restrictions. MySQL Requirements
MySQL version 5.5.3 or greater.  

Actually they are on the bottom of the purchase page before you purchase it. The software requires secure versions of PHP (currently PHP 8), with GD, mbstring, and all default PHP extentions, along with mySQL.

The critical thing is PHP8.0 or 8.1.  When I get home (Im mobile), I’ll run the script and paste the output. That should give you what you need. 

There is a compatibility checking script that will help you figure out if you meet the requirements.  That will even include all of the specific PHP modules and memory settings. 

Check out: