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

Handling Standard PHP Library (SPL) changes

The SPL is an extension that contains key classes that implement basic data structures and enhance OOP functionality. It was first introduced in PHP 5 and is now included by default in all PHP installations. Covering the entire SPL is beyond the scope of this book. Instead, in this section, we discuss where significant changes have occurred in the SPL when running PHP 8. In addition, we give you tips and guidance on SPL changes that have the potential to cause your existing applications to stop working.

We start by examining changes to the SplFileObject class.

Understanding changes to SplFileObject

SplFileObject is an excellent class that incorporates most of the standalone f*() functions, such as fgets(), fread(), fwrite(), and so forth, into a single class. SplFileObject ::__construct() method arguments mirror the arguments provided to the fopen() function.

The main difference in PHP 8 is that a relatively obscure method, fgetss...