Book Image

PHP 7 Programming Blueprints

By : Jose Palala, Martin Helmich
Book Image

PHP 7 Programming Blueprints

By: Jose Palala, Martin Helmich

Overview of this book

When it comes to modern web development, performance is everything. The latest version of PHP has been improvised and updated to make it easier to build for performance, improved engine execution, better memory usage, and a new and extended set of tools. If you’re a web developer, what’s not to love? This guide will show you how to make full use of PHP 7 with a range of practical projects that will not only teach you the principles, but also show you how to put them into practice. It will push and extend your skills, helping you to become a more confident and fluent PHP developer. You’ll find out how to build a social newsletter service, a simple blog with a search capability using Elasticsearch, as well as a chat application. We’ll also show you how to create a RESTful web service, a database class to manage a shopping cart on an e-commerce site and how to build an asynchronous microservice architecture. With further guidance on using reactive extensions in PHP, we’re sure that you’ll find everything you need to take full advantage of PHP 7. So dive in now!
Table of Contents (15 chapters)
PHP 7 Programming Blueprints
Credits
About the Authors
About the Reviewer
www.PacktPub.com
Preface
4
Build a Simple Blog with Search Capability using Elasticsearch

Chapter 9.  Reactive Extensions in PHP

In this chapter, we'll talk about Reactive extensions in PHP, a PHP library that allows PHP programmers to work with PHP in a reactive manner, and how to use in event, also known as publish-subscribe programming. We'll also discuss the idea of functional programming in PHP and how to program in a more succinct way. We will also discuss the following topics:

  • Map

  • Reduce

  • Defer

  • Reactive extensions in the following use cases:

    • Data analysis of logs (parsing Apache logs)

    • Queueing systems (asynchronously working through a queue of tasks)

    • Events

Reactive extensions are a way to code in a functional way using PHP. They are a set of libraries (available on GitHub at https://github.com/ReactiveX/RxPHP) that can help you compose event-based programs by using observable collections and LINQ-style query operators in PHP.