You're reading from The Art of Modern PHP 8 Learn how to write modern, performant, and enterprise-ready code with the latest PHP features and practices

Product type Paperback

Published in Oct 2021

Publisher Packt

ISBN-13 9781800566156

Length 420 pages

Edition 1st Edition

Languages

PHP

Tools

MySQL

Concepts

Server Side Web Development

Author (1):

Joseph Edmonds

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Table of Contents (19) Chapters

Preface

1. Section 1 – PHP 8 OOP

2. Chapter 1: Object-Oriented PHP FREE CHAPTER

3. Chapter 2: Inheritance and Composition, Encapsulation and Visibility, Interfaces and Concretions

4. Chapter 3: Advanced OOP Features

5. Section 2 – PHP Types

6. Chapter 4: Scalar, Arrays, and Special Types

7. Chapter 5: Object Types, Interfaces, and Unions

8. Chapter 6: Parameter, Property, and Return Types

9. Section 3 – Clean PHP 8 Patterns and Style

10. Chapter 7: Design Patterns and Clean Code

11. Chapter 8: Model, View, Controller (MVC) Example

12. Chapter 9: Dependency Injection Example

13. Section 4 – PHP 8 Composer Package Management (and PHP 8.1)

14. Chapter 10: Composer For Dependencies

15. Chapter 11: Creating Your Own Composer Package

16. Section 5 – Bonus Section - PHP 8.1

17. Chapter 12: The Awesomeness That Is 8.1

18. Other Books You May Enjoy

What is Composer?

Composer is a dependency manager. The introduction to Composer from the official website sums this up quite nicely:

"Composer is a tool for dependency management in PHP. It allows you to declare the libraries your project depends on and it will manage (install/update) them for you."

It is definitely worth having a read through the official Composer documentation, which is clear and comprehensive.

Introduction – Composer

https://getcomposer.org/doc/00-intro.md

What are dependencies?

So, we know that Composer is for dependency management, but what are dependencies? Well, simply put, they are modules of code that your main application depends on. Those modules can be third party, or they can be your own first-party modules that you share between your applications.

Let's say that your application needs to send emails. You could roll your own email sending system in pure PHP and use the mail function for this.

PHP: mail –...