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

Controlling anonymous class usage

Anonymous classes, by their very definition, do not have a name. However, for the purposes of information, PHP informational functions such as var_dump(), var_export(), get_class(), and other classes in the Reflection extension will report the anonymous class simply as class@anonymous. However, when an anonymous class extends another class or implements an interface, it might be of some use to have PHP informational functions reflect this fact.

In PHP 8, anonymous classes that extend a class or implement an interface now reflect that fact by changing the label that's assigned to the anonymous class to Xyz@anonymous, where Xyz is the name of the class or interface. If the anonymous class implements more than one interface, only the first interface will appear. If the anonymous class extends a class and also implements one or more interfaces, the name of the class it extends will appear in its label. The following table summarizes these possibilities...