Event-driven programing is a familiar and useful tool for crafting client/server apps and asynchronous libraries. Akin to Node.js or Python's Twisted, React brings PHP up to speed with all of the necessary pieces in a well-packaged framework. This session will introduce the concept of event loops, non-blocking IO, and async programming in PHP, and explore ways it can serve in your technology stack. We'll also examine client/server application, child process communication, addatabase driver