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PHP 7 Programming Cookbook

You're reading from   PHP 7 Programming Cookbook Over 80 recipes that will take your PHP 7 web development skills to the next level!

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Product type Paperback
Published in Aug 2016
Publisher Packt
ISBN-13 9781785883446
Length 610 pages
Edition 1st Edition
Languages
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Author (1):
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Doug Bierer Doug Bierer
Author Profile Icon Doug Bierer
Doug Bierer
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Toc

Table of Contents (16) Chapters Close

Preface 1. Building a Foundation FREE CHAPTER 2. Using PHP 7 High Performance Features 3. Working with PHP Functional Programming 4. Working with PHP Object-Oriented Programming 5. Interacting with a Database 6. Building Scalable Websites 7. Accessing Web Services 8. Working with Date/Time and International Aspects 9. Developing Middleware 10. Looking at Advanced Algorithms 11. Implementing Software Design Patterns 12. Improving Web Security 13. Best Practices, Testing, and Debugging A. Defining PSR-7 Classes Index

Developing classes


The traditional development approach is to place the class into its own file. Typically, classes contain logic that implements a single purpose. Classes are further broken down into self-contained functions which are referred to as methods. Variables defined inside classes are referred to as properties. It is recommended to develop a test class at the same time, a topic discussed in more detail in Chapter 13, Best Practices, Testing, and Debugging.

How to do it...

  1. Create a file to contain the class definition. For the purposes of autoloading it is recommended that the filename match the classname. At the top of the file, before the keyword class, add a DocBlock. You can then define properties and methods. In this example, we define a class Test. It has a property $test, and a method getTest():

    <?php
    declare(strict_types=1);
    /**
     * This is a demonstration class.
     *
     * The purpose of this class is to get and set 
     * a protected property $test
     *
     */
    class Test
    {
    
      protected...
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