This tutorial describes a TDD approach to refactor code to Strategy pattern. Starting from working code and some test, refactoring steps are applied to obtain cleaner code

PHP 8.1 introduced the new Fiber class (see the proposed RFC here https://wiki.php.net/rfc/fiber), which allows running coroutines inside your script, i.e. two functions executing simultaneously

I released on GitHub a PHP library for querying and editing data on the Tado Thermostat System. It is integrated in Laravel 5.x for quick setup in this excellent framework.

This article describes a TDD (Test Driven Development) approach to implement a Finite State Machine (FSM) using PHP+Laravel. However, such method is general and could be used in the programming language of your choice.