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 11: Migrating Existing PHP Apps to PHP 8

Throughout the book, you have been warned of potential code breaks. Unfortunately, there are not really any good tools available that can scan your existing code and check for potential code breaks. In this chapter, we take you through the development of a set of classes that form the basis of a PHP 8 backward-compatible (BC) break scanner. In addition, you learn the recommended process to migrate an existing customer PHP application to PHP 8.

After reading through this chapter and carefully studying the examples, you are much better equipped to handle a PHP 8 migration. With knowledge of the overall migration procedure, you gain confidence and are able to perform PHP 8 migrations with a minimal number of problems.

The topics covered in this chapter include the following:

  • Understanding development, staging, and production environments
  • Learning how to spot BC breaks before a migration
  • Performing the migration
  • ...