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

Learning new array- and string-handling techniques

There have been a number of improvements in PHP 8 array- and string-handling techniques. Although there is insufficient space in this book to cover every single enhancement, we will examine the more significant improvements in this section.

Working with array_splice()

The array_splice() function is a cross between substr() and str_replace(): it lets you replace a subset of one array with another. Its use gets awkward, however, when all you need to do is replace the last part of the array with something different. A quick look at the syntax reveals where it starts to get inconvenient—the replacement parameter is preceded by the length parameter, as illustrated here:


Traditionally, developers first run count() on the original array and use that for the length argument, as shown here:

array_splice($arr, 3, count($arr), $repl);

In PHP 8, the third...