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  • Book Overview & Buying PHP 7 Programming Blueprints
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PHP 7 Programming Blueprints

PHP 7 Programming Blueprints

By : Palala, Martin Helmich
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PHP 7 Programming Blueprints

PHP 7 Programming Blueprints

By: Palala, Martin Helmich
Buy this Book

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 (10 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Conventions
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Reader feedback
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Customer support
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1
1. Create a User Profile System and use the Null Coalesce Operator
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1. Create a User Profile System and use the Null Coalesce Operator
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The null coalesce operator
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Separation of Concerns
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Creating views
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Create a profile input form
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Admin system
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Summary
2
2. Build a Database Class and Simple Shopping Cart
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2. Build a Database Class and Simple Shopping Cart
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Building the database abstraction class
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Shopping Cart
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Installing TCPDF
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Admin for managing purchases
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Summary
3
3. Building a Social Newsletter Service
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3. Building a Social Newsletter Service
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Authentication system
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Summary
4
4. Build a Simple Blog with Search Capability using Elasticsearch
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4. Build a Simple Blog with Search Capability using Elasticsearch
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Creating the CRUD and admin system
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5. Creating a RESTful Web Service
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5. Creating a RESTful Web Service
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RESTful basics
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First steps with the Slim framework
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Implementing the REST service
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Streams and large files
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Summary
6
6. Building a Chat Application
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6. Building a Chat Application
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The WebSocket protocol
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First steps with Ratchet
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Implementing the chat application
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Deployment options
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Bridging Ratchet and PSR-7 applications
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Accessing your application via the web server
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Adding authentication
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Summary
7
7. Building an Asynchronous Microservice Architecture
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7. Building an Asynchronous Microservice Architecture
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The target architecture
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ZeroMQ patterns
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Bootstrapping the project
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Building the inventory service
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Making the inventory service multithreaded
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Building the checkout service
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Building the mailing service
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Building the shipping service
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Bridging ZeroMQ and HTTP
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Summary
8
8. Building a Parser and Interpreter for a Custom Language
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8. Building a Parser and Interpreter for a Custom Language
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How interpreters and compilers work
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Languages and grammars
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Your first PEG parser
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Evaluating expressions
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Building an Abstract Syntax Tree
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Building a better interface
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Evaluating variables
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Adding logical expressions
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Working with structured data
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Working with objects
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Optimizing the interpreter by adding a compiler
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Verifying performance improvements
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Summary
9
9. Reactive Extensions in PHP
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9. Reactive Extensions in PHP
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An introduction to observables
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Introduction to event loop and ReactiveX
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Parsing logs through a Reactive scheduler
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Event queues with ReactiveX
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Summary

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...

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