Today I'd like to play with ZeroMQ. ZeroMQ is a great tool to work with sockets. I will show you the problem that I want to solve: One web application needs to execute background processes but I need to execute those processes in order. Two users cannot execute one process at the same time. OK, if we face to this problem we can use Gearman. I've written various posts about Gearman (here and here for example). But today I want to play with ZeroMQ.
He uses React and some ZeroMQ bindings and Symfony's Process component to make a simple client and server for working with the queue and processes. A screencast is included in the post showing them making the connection and adding the new process. The full code can be found on github (or installable via Composer)