Site News: Blast from the Past - One Year Ago in PHP

Here's what was popular in the PHP community one year ago today:

• Dave Marshall's Blog: Notes from porting ruby to php
  
• CodeIgniter.com: CodeIgniter in 2011: Reactor, Core, & UserVoice
  
• Christoph Dorn's Blog: FirePHP 1.0 in 5 Steps
  
• Label Media Blog: Design Patterns in PHP - Strategy Pattern
  
• Satya Prakash's Blog: PHP is not Java
  
• Community News: PHP Unconference Europe 2011
  
• OpenSky Blog: Inheritance in PHP, or why you want to use an Interface or an Abstract class...
  
• Richard Smaizys' Blog: Improve your code style with simple tips
  
• PHPBuilder.com: Boost PHP Site Performance with Zend Framework Data Caching
  
• Bence Eros' Blog: Using Inheritance
  
• Joshua Thijssen's Blog: Creating a traceroute program in PHP
  
• Label Media Blog: Test Driven Development with PHPUnit
  
• Tobias Schlitt's Blog: PHP library release survey
  
• Till Klampaeckel's Blog: Tracking PHP errors
  
• NETTUTS.com: Creating a Twitter OAuth Application