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)
1
Section 1: PHP 8 Tips
6
Section 2: PHP 8 Tricks
11
Section 3: PHP 8 Best Practices

Chapter 7: Avoiding Traps When Using PHP 8 Extensions

One of the main strengths of the PHP: Hypertext Preprocessor (PHP) language is its extensions. Changes to the PHP language introduced in PHP 8 also require extension development teams to update their extensions at the same time. In this chapter, you will learn which major changes to extensions have been made and how to avoid traps when updating an existing application to PHP 8.

Once you have finished reviewing the sample code and topics presented in this chapter, you will be able to prepare any existing PHP code for migration to PHP 8. In addition to learning about the changes to the various extensions, you will also gain deep insight into their operation. This ability will allow you to make informed decisions when using extensions in PHP 8.

Topics covered in this chapter include the following:

  • Understanding the shift from resources to objects
  • Learning about changes to Extensible Markup Language (XML) extensions...