WAMPserver - why is the stack installed with 2 php.ini files?

Question

I'm a beginner programmer, and I'm learning to program a web app using WampServer. Recently I have tried to modify the internal encoding setting in the php.ini file, and I discovered that there are 2 or them. One is under wamp\bin\php\php5.3.0 and the other one is under wamp\bin\apache\Apache2.2.11\bin. It turns out the 2nd one is the one that governs the behavior of php when I run my program.

So why are there 2 of those files, and what is their respective function?

Thanks,

JDelage

Answer 1

One from the PHP folder is for Command Line interaction, the other is for Apache itself (Web browser).

I use the CLI for my IDE (netbeans).