Book Image

PHP 8 Programming Tips, Tricks and Best Practices

By : Doug Bierer
Book Image

PHP 8 Programming Tips, Tricks and Best Practices

By: Doug Bierer

Overview of this book

Thanks to its ease of use, PHP is a highly popular programming language used on over 78% of all web servers connected to the Internet. PHP 8 Programming Tips, Tricks, and Best Practices will help you to get up-to-speed with PHP 8 quickly. The book is intended for any PHP developer who wants to become familiar with the cool new features available in PHP 8, and covers areas where developers might experience backward compatibility issues with their existing code after a PHP 8 update. The book thoroughly explores best practices, and highlights ways in which PHP 8 enforces these practices in a much more rigorous fashion than its earlier versions. You'll start by exploring new PHP 8 features in the area of object-oriented programming (OOP), followed by enhancements at the procedural level. You'll then learn about potential backward compatible breaks and discover best practices for improving performance. The last chapter of the book gives you insights into PHP async, a revolutionary new way of programming, by providing detailed coverage and examples of asynchronous programming using the Swoole extension and Fibers. By the end of this PHP book, you'll not only have mastered the new features, but you'll also know exactly what to watch out for when migrating older PHP applications to PHP 8.
Table of Contents (17 chapters)
Section 1: PHP 8 Tips
Section 2: PHP 8 Tricks
Section 3: PHP 8 Best Practices

Navigating changes in magic methods

PHP magic methods are predefined hooks that interrupt the normal flow of an OOP application. Each magic method, if defined, alters the behavior of the application from the minute the object instance is created, up until the point where the instance goes out of scope.

Important note

An object instance goes out of scope when it's unset or overwritten. Object instances also go out of scope when defined in a function or class method, and the execution of that function or class method ends. Ultimately, if for no other reason, an object instance goes out of scope when the PHP program ends.

This section will give you a solid understanding of important changes to magic method usage and behavior introduced in PHP 8. Once you understand the situations described in this section, you will be in a position to make the appropriate code modifications to prevent your application code from failing should you migrate to PHP 8.

Let's first have...