Parham dives into Vagga - a lightweight alternative to Docker useful for containerized development environments - and builds a PHP environment!
Performance
Chris introduces Socketize, a "sockets-as-a-service" layer that helps you implement websockets into apps with zero overhead, then adds them to a PHP script!
Scott revisits Appserver and teaches you how to set up an example application with a custom virtual server. Your apps have never been this fast!
Younes writes an entire Notejam app from scratch in this in-depth tutorial and analysis of the high-speed Blink framework

M. Lavaryen explains the Blackfire profiler in depth and demonstrates its use on a simple script, laying the groundwork for further exploration on your end!
Daniel Berman presents a dead easy way of doing continuous delivery (integration + deployment) with the power of ContinuousPHP and Zend Server
Learn about PHP 7 - its new features, its performance upgrades, places to host it, how to develop with it locally, and more
Christopher Pitt re-introduces generators on a practical demo by reading and writing large CSV files while using very little memory.
Daniel Berman from Zend walks you through using Z-Ray to optimize your WordPress apps hosted on Microsoft's cloud hosting - Azure.
Narayan introduces Munee - a PHP lib that automates CSS, JS, LESS, SCSS, CoffeeScript etc minification and compilation, image resizing, caching, and more!
Christopher Pitt goes through the process of building an extremely fast asynchronous PHP application server with Icicle and some League libraries - amazing!
Christopher Pitt introduces event loops - non-blocking async calls in PHP code, akin to Javascript. Can event loops breathe new life into PHP's performance?
Here's a look at Yahoo's MySQL performance analyzer - we go through its options, from graphs to alerts. It's getting ever easier to speed up your DBs!
Scott Molinari introduces Appserver.io - a full-stack PHP environment with a multi-threaded production-ready PHP-based server!
In this tutorial, Bruno implements a Redis cache into an existing application - learn how you can speed up your apps by many factors in just minutes!
Wern Ancheta goes through another set of common caching techniques in PHP: Varnish, Memcached and libraries like Doctrine Cache and Stash
Wern Ancheta covers three common approaches to caching in PHP: Zend Opcache, Query Caching and Expires Headers.