Free Udemy Course 2025: APIs in PHP: The Complete PHP REST API with JWT Course 2026

Are you ready to take your PHP skills to the next level and build real-world backend applications?In this course, you’ll learn how to build a fully functional RESTful API in PHP — completely from scratch — using Object-Oriented Programming (OOP), MySQL, and JWT authentication for secure access.We’ll start simple and gradually build up to a complete backend system that allows you to create, read, update, and delete data (CRUD), authenticate users, and protect your routes using modern security techniques. Unlike many tutorials that skip important concepts, this course explains everything in detail and helps you understand why things work — not just how.You’ll learn how to structure your PHP projects cleanly with separate folders for controllers, models, and core logic, and use autoloading (via spl_autoload_register) to load your classes efficiently without relying on frameworks.Once your CRUD API is working, we’ll integrate JSON Web Tokens (JWT) using the Firebase PHP-JWT library. You’ll learn how to generate, verify, and decode tokens — and how to protect your routes so only authenticated users can access or modify data. We’ll even go one step further by implementing a logout system with token blacklisting, ensuring that once a user logs out, their token becomes invalid.You’ll also learn how to test your API using Postman, handle different HTTP request types, and return proper JSON responses with correct status codes.By the end of this course, you’ll have a complete, secure REST API ready to integrate with any frontend — whether it’s a mobile app, a JavaScript SPA, or another backend system.This course is perfect for students, beginners, and freelancers who want to master PHP API development, understand backend security, and gain real project experience.Get ready to code like a professional backend developer — one endpoint at a time!