Book Image

Modular Programming with PHP 7

By : Branko Ajzele
Book Image

Modular Programming with PHP 7

By: Branko Ajzele

Overview of this book

Modular design techniques help you build readable, manageable, reusable, and more efficient codes. PHP 7, which is a popular open source scripting language, is used to build modular functions for your software. With this book, you will gain a deep insight into the modular programming paradigm and how to achieve modularity in your PHP code. We start with a brief introduction to the new features of PHP 7, some of which open a door to new concepts used in modular development. With design patterns being at the heart of all modular PHP code, you will learn about the GoF design patterns and how to apply them. You will see how to write code that is easy to maintain and extend over time with the help of the SOLID design principles. Throughout the rest of the book, you will build different working modules of a modern web shop application using the Symfony framework, which will give you a deep understanding of modular application development using PHP 7.

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Modular Programming with PHP 7
Branko Ajzele
Sep, 2016 | 332 pages
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Table of Contents (19 chapters)
Modular Programming with PHP 7
Modular Programming with PHP 7
Credits
Credits
About the Author
About the Author
About the Reviewer
About the Reviewer
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Ecosystem Overview
Ecosystem Overview
Getting ready for PHP 7
Summary
2
GoF Design Patterns
GoF Design Patterns
Creational patterns
Structural patterns
Behavioral patterns
Summary
3
SOLID Design Principles
SOLID Design Principles
Single responsibility principle
Open/closed principle
Liskov substitution principle
Interface Segregation Principle
Dependency inversion principle
Summary
4
Requirement Specification for a Modular Web Shop App
Requirement Specification for a Modular Web Shop App
Defining application requirements
Wireframing
Defining a technology stack
Summary
5
Symfony at a Glance
Symfony at a Glance
Installing Symfony
Creating a blank project
Using Symfony console
Controller
Routing
Templates
Forms
Configuring Symfony
The bundle system
Databases and Doctrine
Testing
Validation
Summary
6
Building the Core Module
Building the Core Module
Requirements
Dependencies
Implementation
Unit testing
Functional testing
Summary
7
Building the Catalog Module
Building the Catalog Module
Requirements
Dependencies
Implementation
Unit testing
Functional testing
Summary
8
Building the Customer Module
Building the Customer Module
Requirements
Dependencies
Implementation
Unit testing
Functional testing
Summary
9
Building the Payment Module
Building the Payment Module
Requirements
Dependencies
Implementation
Unit testing
Functional testing
Summary
10
Building the Shipment Module
Building the Shipment Module
Requirements
Dependencies
Implementation
Unit testing
Functional testing
Summary
11
Building the Sales Module
Building the Sales Module
Requirements
Dependencies
Implementation
Unit testing
Functional testing
Summary
12
Integrating and Distributing Modules
Integrating and Distributing Modules
Understanding Git
Understanding GitHub
Understanding Composer
Understanding Packagist
Summary
Index
Index

Summary

In this chapter, we built a simple yet functional Sales module. With just four simple entities (Cart, CartItem, SalesOrder, and SalesOrderItem), we managed to implement simple cart and checkout features. By doing so, we empowered customers to actually make a purchase, instead of just browsing the product catalog. The sales module made use of the payment and shipment services defined in previous chapters. While the payment and shipment services are implemented as imaginary, dummy ones, they do provide a basic skeleton that we can use for real payment and shipment API implementations.

Furthermore, in this chapter, we addressed the admin dashboard, by making a simple interface that merely aggregates a few of the existing CRUD interfaces. Access to the dashboard and the management links is protected by entries in app/config/security.yml, and allowed only for ROLE_ADMIN.

Together, the modules written so far make up a simplified application. Writing robust web shop applications would normally...

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