Book Image

PHP 7 Programming Cookbook

By : Doug Bierer
Book Image

PHP 7 Programming Cookbook

By: Doug Bierer

Overview of this book

PHP 7 comes with a myriad of new features and great tools to optimize your code and make your code perform faster than in previous versions. Most importantly, it allows you to maintain high traffic on your websites with low-cost hardware and servers through a multithreading web server. This book demonstrates intermediate to advanced PHP techniques with a focus on PHP 7. Each recipe is designed to solve practical, real-world problems faced by PHP developers like yourself every day. We also cover new ways of writing PHP code made possible only in version 7. In addition, we discuss backward-compatibility breaks and give you plenty of guidance on when and where PHP 5 code needs to be changed to produce the correct results when running under PHP 7. This book also incorporates the latest PHP 7.x features. By the end of the book, you will be equipped with the tools and skills required to deliver efficient applications for your websites and enterprises.
Table of Contents (22 chapters)
PHP 7 Programming Cookbook
Credits
Foreword
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Creating a simple REST client


REST clients use HyperText Transfer Protocol (HTTP) to generate requests to external web services. By changing the HTTP method, we can cause the external service to perform different operations. Although there are quite a few methods (or verbs) available, we will only focus on GET and POST. In this recipe, we will use the Adapter software design pattern to present two different ways of implementing a REST client.

How to do it...

  1. Before we can define REST client adapters, we need to define common classes to represent request and response information. First, we will start with an abstract class that has methods and properties needed for either a request or response:

    namespace Application\Web;
    
    class AbstractHttp
    {
  2. Next, we define class constants that represent HTTP information:

    const METHOD_GET = 'GET';
    const METHOD_POST = 'POST';
    const METHOD_PUT = 'PUT';
    const METHOD_DELETE = 'DELETE';
    const CONTENT_TYPE_HTML = 'text/html';
    const CONTENT_TYPE_JSON = 'application...