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

Authentication system


In this chapter, we will implement a new authentication system in order to allow administrators of the newsletter to be authenticated. Since PHP5, PHP has improved and added a feature that object-oriented developers have used to separate namespaces.

Let's start by defining a namespace named Newsletter as follows:

<?php 
namespace Newsletter;  
//this must always be in every class that will use namespaces 
class Authentication { 
} 
?> 

In the preceding example, our Newsletter namespace will have an Authentication class. When other classes or PHP scripts need to use Newsletter's Authentication class, they can simple declare it using the following code:

Use Newsletter\Authentication; 

Inside our Newsletter class, let's create a simple check for the user using  bcrypt, which is a popular and secure way of creating and storing hashed passwords.

Note

Since PHP 5.5, bcrypt is built into the password_hash() PHP function. PHP's password_hash() function allows a password to...