Need assistance adding new version of PHP (3 replies)

I have been tasked with updating the version of PHP on our WampServer installation to a version later than 7.2.18, possibly 7.1.33, 7.2.24, or 7.3.11. I didn't know what a WampServer was until yesterday so I am coming at this from the perspective of just needing to get it installed and updated. I downloaded and installed a later version of PHP from the Repository of Wampserver files [1] but the version of PHP won't appear in the list (the green icon in the Notification Area) to be selected. I'm told someone tried updating PHP earlier this year but ran into the same problem.

I'm looking for a step-by-step set of instructions for updating PHP and possibly a troubleshooting guide for when it doesn't work.

1. Windows Server 2012 R2 64-bit
2. Wampserver 3.1.9 - 64bit
3. Apache 2.4.39
4. PHP 7.2.18
5. MySQL 5.7.26
5a. MariaDB 10.3.14
6. Color of the Wampserver icon is green
7. Active lines in hosts file:
127.0.0.1 localhost
127.0.0.1 localhost
127.0.0.1 localhost::1 localhost
::1 localhost

8. Yes, I have access to localhost (Home page of wampserver)
8a. No error message at the bottom of the page
8b. Chrome on Windows 10, IE on Windows Server
9. Yes, I have access to phpMyAdmin
10. No error message
11. Sophos antivirus, no firewall on server
12. The www directory opens from within the C:\wamp64 folder so I assume Wampserver is installed in C:\wamp64

Thank you for your attention.

-Jeff



[1] [wampserver.aviatechno.net]