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


In this chapter, you learned about a number of changes introduced by PHP 8 at the procedural level. You first learned about the new nullsafe operator, which allows you to considerably shorten any code in which a chain of object references might fail. You also learned how usage of the ternary operator and the variadics operator has been tightened and improved, and that the concatenate operator has been demoted in the order of precedence. This chapter also covered advantages and disadvantages of arrow functions, as well as how they can be used as a clean and concise alternative to anonymous functions.

Later sections in this chapter showed you how PHP 8 continues the trend toward uniform variable syntax first introduced in PHP 7. You learned how remaining inconsistencies have been addressed in PHP 8, including interpolated string and magic constant de-referencing, as well as improvements in array and string handling that promise to make your PHP 8 cleaner, more concise, and...