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PHP 8 Programming Tips, Tricks and Best Practices

You're reading from  PHP 8 Programming Tips, Tricks and Best Practices

Product type Book
Published in Aug 2021
Publisher Packt
ISBN-13 9781801071871
Pages 528 pages
Edition 1st Edition
Languages
Author (1):
Doug Bierer Doug Bierer
Profile icon Doug Bierer

Table of Contents (17) Chapters

Preface 1. Section 1: PHP 8 Tips
2. Chapter 1: Introducing New PHP 8 OOP Features 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

Working with new PHP 8 operators

A number of new operators have been introduced with PHP 8. In addition, PHP 8 generally introduces a uniform and consistent manner in which these operators can be used. In this section, we examine the following operators:

  • Variadics operator
  • Nullsafe operator
  • Concatenate operator
  • Ternary operator

Let's start with a discussion of the variadics operator.

Using the variadics operator

The variadics operator consists of three leading dots (...) preceding a normal PHP variable (or object property). This operator has actually been with the language since PHP 5.6. It's also referred to as the following:

  • Splat operator
  • Scatter operator
  • Spread operator

Before we dive into the improvements PHP 8 has made using this operator, let's have a quick look at how the operator is normally used.

Unknown number of arguments

One of the most common uses for the variadics operator is in a situation...

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