Adding Firebird support to your WAMP installation is an straightforward step by step process.
I have found an excelent post at Lorenzo’s Alberton blog. This article really helped me to go directly to the point, even seven years after being published.
Just as a litle contribution, I’d like to mention php.ini file is located into the Apache’s bin folder.
In my installation, this folder is C:\wamp\bin\apache\apache2.2.22\bin
After uncommenting the line
and restarting apache, it just worked!
Let´s see the Wamp server dashboard to check the newly loaded module.
You can also check your phpinfo script to see your PHP installation is now Interbase (Firebird) compliant.