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 Chapter 4. Let's provide a quick recap for you.

First, we looked at all the scalar types – the simple fundamental data. We learned as well about type juggling between these scalar types and how it can be quite complex and tricky to predict if you rely on automatic type juggling. We learned about the difference between identical and equal and the corresponding operators, === and ==. The gist here was that you are always better off using checks for identity wherever possible so you can avoid the pitfalls of type juggling.

After that, we looked at arrays and iterables, including a quick peek at generators – go and play with them, they are awesome. We also looked at the use of DocBlocks to cover the current lack of rich type information in the language itself when dealing with arrays and iterables and how we can supplement this so that IDEs and QA tools can understand what our arrays and iterators actually contain.

We looked...