How Composer Autoloading Works in Laravel (Complete Guide) When building with Laravel , you rarely need to manually include PHP files. That’s thanks to Composer autoloading — a feature that automatically loads the necessary classes when you need them. In this guide, you’ll learn how Composer autoloading works in Laravel , how PSR-4 fits in, and how to use it effectively in your own code. What is Composer Autoloading? Composer is Laravel’s dependency manager. One of its most powerful features is autoloading — it automatically loads PHP classes so you don’t have to write require or include statements manually. It works by following a standardized naming and directory structure defined by PSR-4 . How PSR-4 Autoloading Works PSR-4 is a PHP standard that defines how to map namespaces to file paths. Composer uses this standard to find and load your classes automatically. In Laravel, you ca...