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


The first thing that a new request interacts with is the controller. As mentioned previously, the controller handles routing a request, coordinating the model to process the data, and then utilizing the view to get a response, which can then be returned. It acts as the outermost layer of your application.

Front controller

Within the MVC pattern there is another commonly used pattern called the Front Controller. This is the single point of entry for all web requests. Generally the Front Controller should be lean and delegate all actual work to specific controllers for specific requests.

The front controller's job is to take every single inbound request and decide what to do with it.

In some frameworks or applications, the front controller may handle all "Controller" level duties. However, in ToyMVC, we have decided to have discrete controllers for each section of the app. This keeps our classes small, allows us to stick to SOLID principles, and...