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
LaravelVisitor is a Visitor Design Pattern implementation for Laravel. It allows to easily execute processing of collections of arbitrary elements, without requiring to use repeated conditionals, thus improving code abstraction.