March 9th, 2013
As thing are moving along in PHP versions, and as we start seeing more and more of php 5.5, I find it very useful to be able to switch between PHP versions. If you're on OSX, and using macports, switching is easy enough. There is a port called "php_select" that will help you choose the currently active php version.
March 8th, 2013
I've been using macports ever since I switched to the macbook pro a couple of years ago. It's a very fine ports collection that uses very straightforward commands to do whatever is it you want to do.