Windows下的PHP CLI - 它是如何在PATH中获得的?

I'm using WAMP and there I have PHP 5.4.x - under CLI I realized I have PHP 5.3.x (php --version shows 5.3.5). I checked the environment variables but for the declared PATH there is nothing related to PHP. Any ideas how to figure out which executable and why is referenced in the CMD (I probably have installed a package long time ago and forgot about it)?

It's Windows 7 x64.

Run this

php -r "for(;;) sleep(1);"

in your cmd and then use the task manager to find the php.exe and open the properties.

There you should able to find the path of the executable.

screenshot