I recently released a Premium version of Custom PHP Settings which comes with extended features such as:
Display WordPress Information.
Display Database Information.
Add and configure Environment Variables.
Support to add unlimited named configurations.
Backup configuration file.
Restore configuration file from backup.
Extended settings can be modified.
Extended support.
There are 3 different plans that you can select from:
BASIC
Add multiple configurations.
Modify all PHP settings.
https://checkout.freemius.com/mode/dialog/plugin/13735/plan/24942/
PROFESSIONAL
Add and configure Environment Variables.
Backup configuration file.
https://checkout.freemius.com/mode/dialog/plugin/13735/plan/22948/
AGENCY
Restore configuration file from backup.
Extended support.
https://checkout.freemius.com/mode/dialog/plugin/13735/plan/24930/
Thank you for your support!