PHP tutorial: Profiling performance to find bottlenecks |

This PHP tutorial shows how to measure memory usage, duration, and frequency of functions calls with the Xdebug profiler. Watch more at

This tutorial is a single movie from the Debugging PHP: Advanced Techniques course presented by author Jon Peck. The complete course is 1 hour and 28 minutes long and demonstrates how to leverage PHP’s built-in tools, as well as the Xdebug and Firebug extensions and FirePHP library to improve the quality of your code and reduce troubleshooting overhead

1. Built-In PHP Debugging
2. Introducing Xdebug
3. Debugging from the Browser