Design Patterns in PHP: A Practical Guide

The book "Design Patterns in PHP" is a practical guide to using classic design patterns (GoF) in modern PHP development. The author thoroughly examines 23 patterns divided into three groups: creational, structural, and behavioral.

Each pattern is covered using a consistent structure: the problem the pattern solves, a UML diagram, an implementation example in PHP, and recommendations for use in real projects. Special attention is paid to PHP-specific features: late static binding, traits, anonymous classes, and modern language capabilities (PHP 8.x).

Who this book is for

• Intermediate and advanced PHP developers who want to systematize their knowledge of architecture
• Beginner programmers who have mastered the basics of OOP and strive to write higher-quality code
• Team leads and architects looking for effective ways to organize a codebase

What you will learn

• How to apply Singleton, Factory Method, and Abstract Factory for managing object creation
• When to use Adapter, Proxy, and Decorator for flexible work with existing classes
• How to implement Observer, Strategy, and Command for separating logic and handling events
• SOLID principles and their connection to design patterns
• Anti-patterns in PHP and how to avoid them
• Practical examples from real projects: frameworks, CMS, API services

All code examples are relevant for PHP 8.x and include comments. The book contains exercises for independent work and recommendations for integrating patterns into popular frameworks (Laravel, Symfony).

This is not dry theory, but a tool that will help you write code that is easy to test, extend, and maintain. After reading, you will be able to confidently design application architecture of any complexity.