PHP performance and memory usage: How to implement a real life benchmark with PHP

I found a very interesting blog about PHP coding performance. Every PHP coder should read this blog. Measure and write code. In this order. Check this blog, right?

PHP performance and memory usage: How to implement a real life benchmark with PHP: To determine the maximum capacity of a web page, Apache ab is often used in the first step. Fetching one URL very often is optimal for cac...