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


That brings us to the end of this chapter and the end of Part 1. Let's have a quick reminder of what we have covered in this part and this chapter.

We started with a very quick overview of what object-oriented programming (OOP) actually means, and we clarified this by comparing it with some other programming styles. Next, we looked at some existing frameworks and platforms that you might work with that are written in OO PHP.

Then we had a good explore of how the inheritance model works, touched on how abstract, final classes and methods can be used to allow or prohibit inheritability, and looked at a contrived example of some inheritance-based code.

In contrast to inheritance, we explored composition, building classes using instances of other classes, and trying to keep classes small and tightly focused. More modern PHP tends to favor this approach as it brings multiple benefits in legibility, testability, and flexibility.

We moved then to have a very quick...