This is more about exploring the practical ways of doing scrum
To initiate scrum, automation is very important. It enables dev more focus on development and get the communication more transparent. I had been seeking for tools of doing this for long. The journey isn't very easy but it is inspiring and helpful.
Makefile is light and handy for little small work. It not only makes a good automated result but also works as a good document. Phing is good for PHP as it's easy for PHP deverlopers to come up with customized tasks. However, I personally think Ant is better than Phing even within the scope of PHP application. However, I believe Gradle is better than any of them.