Book Image

The Art of Modern PHP 8

By : Joseph Edmonds
5 (1)
Book Image

The Art of Modern PHP 8

5 (1)
By: Joseph Edmonds

Overview of this book

PHP has come a long way since its introduction. While the language has evolved with PHP 8, there are still a lot of websites running on a version of PHP that is no longer supported. If you are a PHP developer working with legacy PHP systems and want to discover the tenants of modern PHP, this is the book for you. The Art of Modern PHP 8 walks you through the latest PHP features and language concepts. The book helps you upgrade your knowledge of PHP programming and practices. Starting with object-oriented programming (OOP) in PHP and related language features, you'll work through modern programming techniques such as inheritance, understand how it contrasts with composition, and finally look at more advanced language features. You'll learn about the MVC pattern by developing your own MVC system and advance to understanding what a DI container does by building a toy DI container. The book gives you an overview of Composer and how to use it to create reusable PHP packages. You’ll also find techniques for deploying these packages to package libraries for other developers to explore. By the end of this PHP book, you'll have equipped yourself with modern server-side programming techniques using the latest versions of PHP.
Table of Contents (19 chapters)
Section 1 – PHP 8 OOP
Free Chapter
Chapter 1: Object-Oriented PHP
Section 2 – PHP Types
Chapter 5: Object Types, Interfaces, and Unions
Section 3 – Clean PHP 8 Patterns and Style
Section 4 – PHP 8 Composer Package Management (and PHP 8.1)
Section 5 – Bonus Section - PHP 8.1

Chapter 7: Design Patterns and Clean Code

In the previous two chapters, we have been looking at how to write modern, object-oriented, and typed PHP 8 code. That is all well and good, but there is always going to be a difference between writing valid code and writing clean, self-documenting, and easily testable code.

In this chapter, we are going to explore some ways you can move from writing code that works through to code that works and is also a pleasure to work with throughout its life cycle, from initial writing through to long-term maintenance.

This chapter will cover the following main topics:

  • Clean code overview
  • Design patterns

As usual, you can find all the code samples for this chapter in the main repo for the book available on GitHub at

Clean code overview

When we are writing code, there are always many ways of achieving the same goals. This means that it is possible to write perfectly...