PHP Tutorial

1. PHP Introduction

What PHP is, why it still powers a huge share of the web, installing it, and your first script.

2. PHP Syntax & Variables

Variables, types, string interpolation, indexed and associative arrays, control flow, and the match expression.

3. Functions & OOP in PHP

Typed functions, classes, constructor property promotion, interfaces, and traits.

4. Modern PHP

Namespaces, Composer/PSR-4 autoloading, enums, readonly properties, attributes, and the nullsafe operator.

5. Error Handling and Exceptions

try/catch/finally, catching multiple exception types, custom exception classes, and building an exception hierarchy.

6. Composer and Packages in Depth

Semantic versioning, the anatomy of composer.json, classmap/files autoloading, and publishing your own reusable package.

7. Testing with PHPUnit

Writing test classes, assertions, setUp/tearDown, and mocking a dependency with createMock.

8. PHP Interview Questions

Commonly asked PHP interview questions on == vs ===, traits vs interfaces, and PSR-4 autoloading.