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

Discovering what has been removed from the core

In this section, we consider not only functions and classes that have been removed from PHP 8, but we will also have a look at usage that has been removed as well. We will then have a look at class methods and functions that still exist but no longer serve any useful purpose due to other changes in PHP 8. Knowing which functions have been removed is extremely important in order to protect against a potential code break following a PHP 8 migration.

Let's start by examining functions removed in PHP 8.

Examining functions removed in PHP 8

There are a number of functions in the PHP language that have only been retained thus far in order to maintain backward compatibility. However, maintenance of such functions drains resources away from core language development. Further, for the most part, such functions have been superseded by better programming constructs. Accordingly, there has been a slow process whereby such commands have...