AppDynamics allows you to drill down into a specific PHP call stack trace to identify the method and class-level detail around response time latency quickly and easily. While multiple application performance monitors application response time correlation, we offer complete visibility, enabling users to get to the actual root cause of PHP performance issues quickly - in a few seconds.
Automatic detection of your application architecture, including app servers, is applied. It then displays your architecture in a flow map, allowing you to find and see the bottlenecks in your production applications.
Understand the client-side performance impact of business transactions by automatically correlating browser and device performance to originating business transaction performance metrics.
Care.com uses AppDynamics to keep the site's critical applications responsive.
PHP Performance Crash Course, Part 1: The Basics
"We all know performance is important, but performance tuning is too often an afterthought. As a result, taking on a performance tuning project for a slow application can be pretty intimidating – where do you even begin? In this series, I’ll tell you about the strategies and technologies that (in my experience) have been the most successful in improving PHP performance. To start off, however, we’ll talk about some of the easy wins in PHP performance tuning. These are the things you can do that’ll get you the most performance bang for your buck, and you should be sure you’ve checked off all of them before you take on any of the more complex stuff...."
Introducing AppDynamics for PHP
"It’s been about 12 years since I last scripted in PHP. I pretty much paid my way through college building PHP websites for small companies that wanted a web presence. Back then PHP was a perfect choice because nearly all the internet service providers had PHP support for free if you registered domain names with them. Java and .NET wasn’t an option for a poor smelly student like me, so I just wrote standard HTML with embedded scriplets of PHP code and bingo–I had dynamic web pages...."