Object-Oriented PHP

Writing Resilient & Reusable Code in PHP 7

With the release of PHP 7, Object-Orientation has matured significantly in PHP. This book acts as a guide to using mature OOP practices in modern PHP to build and refactor modern web and API applications.

Junade Ali

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About

About the Book

Most PHP developers have a clear understanding of what technical debt looks like and the business necessity of having resilient and reliable code. With the release of PHP 7, the Object-Oriented language features of PHP have matured significantly. This book seeks to discuss how you can use Object-Oriented PHP now.

In order to rapidly deliver value through software, your codebase needs to be resilient to the forces of change. This book will guide you through using Object-Orientation in modern PHP to deliver a reliable and reusable code throughout the design, development and construction phases. Whether working on a brand new codebase or refactoring existing code, this book will discuss the patterns to ensuring your codebase is resilient and reliable for years to come.

Topics include:

An Introduction to Object-Orientation (Classes, Scalar Type Hinting, Interfaces, Abstract Classes, Inheritance, Coding Standards)
Advanced Object-Oriented Programming (Advanced OOP, Magic Methods, Polymorphism, Generators, Composition vs Inheritance, Traits)
SOLID Design Principles
Gang of Four Design Patterns
Testing (Unit Testing, Integration Testing and End-to-End Testing)
Identifying Code Smells and improving code quality through Refactoring

What Design Patterns does this book cover?

Factory
Abstract Factory
Builder Pattern
Composite Pattern
Adapter Pattern
Chain-of-Responsibility Pattern
Observer Pattern

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License

Creative Commons Attribution 4.0 International License

Author

About the Author

Junade Ali

Junade Ali was a technical lead at some of the UK's leading digital agencies and has also worked using PHP in mission-critical road-safety systems. He loves pushing PHP to its innovative limits. Having started his career as a web development apprentice, he still remains engaged in the academic computer science community.

Junade, an avid contributor to the PHP community, has also spoken at PHPTek and the Lead Developer Conference. In addition to this, Junade was interviewed by Cal Evans for Voices of the ElePHPant, and he has appeared on the PHP Roundtable. In this spirit, Junade is proud of his local PHP user group: PHPWarks. Currently, Junade works at CloudFlare as a polymath, and helps make the Internet more secure and faster.

Table of Contents

Introduction

Conventions
Code Style
Errata and Comments

Back to Basics

Composer Package Manager
Classes
Scalar Types Hinting
Interfaces
Abstract Classes
Inheritance
Coding Standards
Conclusion

Advanced Concepts

Magic Methods
Polymorphism
Dependency Injection
Generators
Composition vs Inheritance
Traits
Conclusion

SOLID Design Principles

Single Responsibility Principle
Open/Closed Principle
Liskov Substitution Principle
Interface Segregation Principle
Dependency-Inversion Principle
Conclusion

An Introduction to Design Patterns

Design Pattern Principles
Creational Design Patterns
Structural Design Patterns
Behavioural Design Patterns
Conclusion

Testing

Unit Testing
Conclusion (Testing Matters!)

How to Write Better code

Refactoring
PHP-MD
Conclusion

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