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

PHP 7 Programming Blueprints

By : Jose Palala, Martin Helmich
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PHP 7 Programming Blueprints

PHP 7 Programming Blueprints

By: Jose 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
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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
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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

The WebSocket protocol

In this chapter, we'll be working extensively with WebSockets. To fully understand the workings of the chat application that we're going to build, let's first have a look at how WebSockets work.

The WebSockets protocol is specified in RFC 6455 and uses HTTP as the underlying transport protocol. In contrast to the traditional request/reply paradigm, in which the client sends a request to the server, who then replies with a response message, WebSocket connections can be kept open for a long time, and both server and client can send and receive messages (or data frames) on the WebSocket.

WebSocket connections are always initiated by the client (so, typically, a user's browser). The following listing shows an example request that a browser might send to a server supporting WebSockets:

GET /chat HTTP/1.1 
Host: localhost 
Upgrade: websocketConnection: upgrade 
Origin: http://localhost 
Sec-WebSocket-Key: de7PkO6qMKuGvUA3OQNYiw==

Sec-WebSocket-Protocol...
CONTINUE READING
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Tech Concepts
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Programming languages
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PHP 7 Programming Blueprints
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