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

Chapter 5: Discovering Potential OOP Backward-Compatibility Breaks

This chapter marks the beginning of Part 2 of the book, PHP 8 Tricks. In this part, you'll discover the dark corners of PHP 8: the place where backward-compatibility breaks exist. This part gives you insight into how to avoid problems before migrating an existing application to PHP 8. You will learn what to look for in your existing code that could cause it to stop working after a PHP 8 upgrade. Once you master the topics presented in this part of the book, you will be well equipped to modify existing code in such a manner that it continues to function normally following a PHP 8 upgrade.

In this chapter, you will be introduced to new PHP 8 features specific to object-oriented programming (OOP). The chapter provides you with plenty of short code examples that clearly illustrate the new features and concepts. This chapter is critical in helping you quickly take advantage of the power of PHP 8 as you adapt the...