SQL Injection Cheat Sheet : Samples are provided to allow reader to get basic idea of a potential SQL Injection attack and almost every section includes a brief information about...
Eloquent JavaScript : Eloquent JavaScript is a book providing an introduction to the JavaScript programming language and programming in general.
Mink : Mink is an open source acceptance test framework for web applications, written in PHP 5.3.
API Security Checklist : Checklist of the most important security countermeasures when designing, testing, and releasing your API.
This is a collection of known design patterns and some sample code how to implement them in PHP. Every pattern has a small list of examples (most of them from Zend Framework, Symfony2 or Doctrine2 as I'm most familiar with this software).