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.
Table of Contents (19 chapters)
Modular Programming with PHP 7
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
Free Chapter
1
Ecosystem Overview
Index

Requirements


Application requirements, defined in Chapter 4, Requirement Specification for Modular Web Shop App, give us some wireframes relating to the cart and checkout. Based on these wireframes, we can speculate about what type of entities we need to create in order to deliver on functionality.

The following is a list of required module entities:

  • Cart

  • Cart Item

  • Order

  • Order Item

The Cart entity includes the following properties and their data types:

  • id: integer, auto-increment

  • customer_id: string

  • created_at: datetime

  • modified_at: datetime

The Cart Item entity includes the following properties:

  • id: integer, auto-increment

  • cart_id: integer, foreign key that references the category table id column

  • product_id: integer, foreign key that references product table id column

  • qty: string

  • unit_price: decimal

  • created_at: datetime

  • modified_at: datetime

The Order entity includes the following properties:

  • id: integer, auto-increment

  • customer_id: integer, foreign key that references the customer table id column...