edit on php.ini doesn't work

Question

I have PHP in an Apache2.

When I do a modification in my php.ini, like uncomment a module to active it, it doesn't work. In my phpinfo(), the Loaded Configuration File is on C:\php\php.ini, which is the right place.

I restart my Apache after every edition on the php.ini. PHP run well on the Apache.

So why I can't active my module ? (Actually I'm trying to active the PDO driver for MySQL)

Answer 1

Uncomment this line to consider extensions :

; extension_dir = "ext"

Answer 2

extension_dir is the problem - make sure you have that pointing to the directory, where your DLL is.