You're reading from PHP 8 Programming Tips, Tricks and Best Practices A practical guide to PHP 8 features, usage changes, and advanced programming techniques

Product type Paperback

Published in Aug 2021

Publisher Packt

ISBN-13 9781801071871

Length 528 pages

Edition 1st Edition

Languages

PHP

Tools

phpList

Concepts

Programming Language

Author (1):

Doug Bierer

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Table of Contents (17) Chapters

Preface

1. Section 1: PHP 8 Tips

2. Chapter 1: Introducing New PHP 8 OOP Features FREE CHAPTER

3. Chapter 2: Learning about PHP 8's Functional Additions

4. Chapter 3: Taking Advantage of Error-Handling Enhancements

5. Chapter 4: Making Direct C-Language Calls

6. Section 2: PHP 8 Tricks

7. Chapter 5: Discovering Potential OOP Backward-Compatibility Breaks

8. Chapter 6: Understanding PHP 8 Functional Differences

9. Chapter 7: Avoiding Traps When Using PHP 8 Extensions

10. Chapter 8: Learning about PHP 8's Deprecated or Removed Functionality

11. Section 3: PHP 8 Best Practices

12. Chapter 9: Mastering PHP 8 Best Practices

13. Chapter 10: Improving Performance

14. Chapter 11: Migrating Existing PHP Apps to PHP 8

15. Chapter 12: Creating PHP 8 Applications Using Asynchronous Programming

16. Other Books You May Enjoy

Chapter 8: Learning about PHP 8's Deprecated or Removed Functionality

This chapter walks you through functionality that has been deprecated or removed in PHP Hypertext Preprocessor 8 (PHP 8). This information is extremely important for any developer to know. Any code that uses removed functionality must be rewritten before an upgrade to PHP 8. Likewise, any deprecation is a clear signal to you that you must rewrite any code that depends upon such functionality, or risk problems in the future.

After you have read the material in this chapter and followed the example application code, you can detect and rewrite code that has been deprecated. You can also develop workarounds for functionality that has been removed and learn how to refactor code that uses removed functionality involving extensions. Another important skill you will learn from this chapter is how to improve application security by rewriting code depending on removed functions.

Topics covered in this chapter include...