XHProf is a function-level hierarchical profiler for PHP and has a simple HTML based navigational interface. The raw data collection component is implemented in C (as a PHP extension). The reporting/UI layer is all in PHP. It is capable of reporting function-level inclusive and exclusive wall times, memory usage, CPU times and number of calls [...]
HI I’m Chris and I’ve been living under a rock because I just barely learned about using the console.profile() function in conjunction with FireBug. Better late than never. I was trying to figure out why appending data to an HTML table with jQuery was so damn time consuming. A quick google search yielded the awesome [...]
Setting up AB Tests using Google Analytics is a simple and free alternative to incredibly expensive solutions like Omniture AB Testing. I had actually used Omniture Test and Target with a company I had previously worked with. The results the Omnitures solution gave were very suspect when compared to our own internal tracking stored in [...]
It’s been a while since I last posted on here so I thought I’d get something up here before my next big blog post. Since starting a new job back in September I’ve been working in CakePHP 1.3 (soon to be 2.0). The other day I had the opportunity to explore optimizing CakePHP. My [...]
Recently I was attempting to test a web application using BrowserCam. BrowserCam has a bank of virtual machines on different versions of many platforms including Apple OSX, Linux Fedora, and Windows. While attempting to regression test in older versions of IE I noticed I absolutely could not log in to my application. This only occured [...]
I’ve been going through the MySQL slow query log at my new job to optimize our applications performance. It’s a bit more scary making changes when you’re the “new guy” because there are a lot of “gotchas” you haven’t quite figured out in the new platform. Well one of the queries that I wanted to [...]
I recently blogged on Reducing Code using CodeIgniters Active Record Class. In this blog I focus on easily collecting data from your object members using get_object_vars(). After using this for a while I found that unsetting certain members prior to an insert/update became rather annoying. I’ve been knee deep in Code Igniter for the past [...]
I performed some unscientific PHP benchmarks today pitting casting to an integer against is_numeric against preg_replace. The point was to see which is the fastest way of quickly cleaning user input before passing to a SQL query to prevent against SQL injection. Obviously this would only work on database fields that are integers. To be [...]