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...
ServiceWorker Cookbook : The Service Worker Cookbook is a collection of working, practical examples of using service workers in modern web apps.
idiomatic-css : Principles of writing consistent, idiomatic CSS
Pro Git : The entire Pro Git book, written by Scott Chacon and published by Apress, is available here
ZeroBin : A minimalist, opensource online pastebin where the server has zero knowledge of pasted data. Data is encrypted/decrypted in the browser using 256 bits...
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).