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


In this chapter, you learned about differences in string handling between PHP 8 and earlier versions, and how to develop workarounds that address differences in string handling. As you learned, PHP 8 exerts greater control over the data types of string function arguments, as well as introducing consistency in what happens if an argument is missing or null. As you learned, a big problem with earlier versions of PHP is that several assumptions were silently made on your behalf, resulting in a huge potential for unexpected results.

In this chapter, we also highlighted issues involving comparisons between numeric strings and numeric data. You learned not only about numeric strings, type-juggling, and non-strict comparisons, but also how PHP 8 corrects flaws inherent in numeric string handling that were present in earlier versions. Another topic covered in this chapter demonstrated potential issues having to do with how several operators behave differently in PHP 8. You learned...