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 2: Inheritance and Composition, Encapsulation and Visibility, Interfaces and Concretions

In this second chapter, we are going to learn as much as we can about the OOP features of PHP when it comes to creating full sets of classes that are related to each other and that work together to provide a specific feature.

First, we are going to learn about encapsulation and the differences between private, protected, and public class properties and methods. Hopefully, you will see the advantage of keeping things as private as possible.

Then we are going to look in detail at the two main ways of creating a graph of related and interdependent classes: classic inheritance and the alternative approach of composition.

As we explore this, I hope that you will also learn some other language features along the way. Anything that you spot that is not immediately clear to you, I really encourage you to go and look it up in the official PHP docs.

This chapter will cover the following...