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

View More author details

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

Learning about changes to XML extensions

XML version 1.0 was introduced as a World Wide Web Consortium (W3C) specification in 1998. XML bears some resemblance to HyperText Markup Language (HTML); however, the main purpose of XML is to provide a way to format data that's readable to both machines and humans. One of the reasons why XML is still widely used is because it's easily understandable and does a stellar job at representing tree-structured data.

PHP provides a number of extensions that allow you to both consume and produce XML documents. There have been a few changes introduced to many of these extensions in PHP 8. For the most part, these changes are minor; however, it's important to be aware of these changes if you wish to be a well-rounded and informed PHP developer.

Let's first have a look at changes to the XMLWriter extension.