The PHP Interpreter

Siege is an http load tester and benchmarking utility

A simple & straight-to-the-point PHP profiling extension with its built-in web UI

Hypothetical Indexes for PostgreSQL

PHP APM (Alternative PHP Monitor)

Your interpreter isn’t safe anymore  —  The PHP module backdoor

Apache module to support atomic deploys - http://codeascraft.com/2013/07/01/atomic-deploys-at-etsy/

Automatic strict types in PHP7

Materials for PHP Extension workshop

Getting started with PHP extension development e-book

Use raspberry GPIO directly in PHP 7 with this extension

PHP piano extension