I've been using EasyPHP to develop my asynchronous multiplayer game, this is required for my current school assignments. The installation was a horrible experience, but we (The Teacher and I) got it and the HTTP server to work successfully. However, starting the Database server does not and always returns the same error:
(Translation: phpMyAdmin - Error
The extension mysqli is missing. Check your PHP configuration. See our documentation for more information.)

Specs:
HTTP server specs:
Apache 2.4.25 x86 - PHP 5.6.30 x86
Port: 80
Database server specs:
MySQL 5.7.17 x86
Port: 3306
Currently installed modules:
MySQL Administration : PhpMyAdmin 4.7.0
Installed using easyphp.org: DEVSERVER 17.0
What has been attempted:
- Installing mySQL from the modules section, error does not change.
- Re-installing the entire application (~5 times)
- Restarting (including restarting the pc)
- Installing various modules.
- Solution listed here: https://github.com/easyphp/DEVSERVER/issues/81
- Solutions similar to the one mentioned above.
- Every time we made sure only one tray was running in task manager.
- A CLI is present in task manager (On every reinstall, and current install), as expected.
- A Apache HTTP server is also present (On every reinstall, and current install), as expected.
- Nothing different was found comparing my installation with those of my classmates. (except the database not working)