Many article have been written about how well PHP is for web development. It's all cool, but to get PHP running in the enterprise, you need more than just fancy trick. One of the need is the ability to scale your application, but I like to specially put it as scale out your box. Let say we're using Linux on Intel, how would you scale your LAMP Application?
To get the ball rolling, I probably will use a front-end running Linux and some network load balancing. But how do you make sure session data is shared by your multiple web server....
