The Clean Architecture in PHP
The Clean Architecture in PHP
About the Book
It happens so unexpectedly: your project started off great at first with you developing at a rapid pace, but before you know it, you've come to a screeching halt. Adding the simplest of features takes forever. Unrelated pieces of code keep breaking without being touched. You've given up on tests because you simply don't have time and, frankly, they're all broke at this point anyway.
Your code doesn't have to be an unwieldy, soul crushing nightmare that revokes any joy of programming you once had.
Finding the best way to organize your code is one of the hardest parts of coding.
Determing the best way to architect your application is a very important step in development. Heading in the wrong direction can lead to a nightmare later, and make it nearly impossible to refactor the application to meet new demands, and can make properly testing the application a pain. While the methods outlined in this book aren't the only way to go about developing an application, they do provide a framework for developing applications that are:
- Testable
- Refactorable
- Easy to work with
- Easy to maintain
In this book, we cover the Clean Architecture, coined by Uncle Bob, and how to implement it in PHP, as well as the concepts of SOLID design, various design patterns, and a look at various architectures.
About the Author
Bundles that include this book
Table of Contents
-
-
Introduction
- Organization
- The Author
- A Word about Coding Style
-
Introduction
-
The Problem With Code
-
Writing Good Code is Hard
- Writing Bad Code is Easy
- We Can’t Test Anything
- Change Breaks Everything
- We Live or Die by the Framework
- We Want to Use All the Libraries
- Writing Good Code
-
What is Architecture?
- What does Architecture Look Like?
- Layers of Software
- Examples of Poor Architecture
- Costs of Poor Architecture
-
Coupling, The Enemy
- Spaghetti Coupling
- OOP Coupling
- Why is Coupling the Enemy?
- How do we Reduce Coupling?
-
Writing Good Code is Hard
-
Your Decoupling Toolbox
-
Design Patterns, A Primer
- The Factory Patterns
- Repository Pattern
- Adapter Pattern
- Strategy Pattern
- Learning More Design Patterns
-
SOLID Design Principles
- Single Responsibility Principle
- Open/Closed Principle
- Liskov Substitution Principle
- Interface Segregation Principle
- Dependency Inversion Principle
- Applying SOLID Principles
-
Dependency Injection
- Inversion of Control
- When to use Dependency Injection
- Handling Many Dependencies
- Are we still coupling?
-
Defining a Contract with Interfaces
- Interfaces in PHP
- Using Interfaces as Type Hints
- Using Interfaces as a Contract
- Making Third Party Code Conform to Contracts
-
Abstracting with Adapters
- Setting up the Adapter
- How does this help?
-
Design Patterns, A Primer
-
The Clean Architecture
-
MVC, and its Limitations
- MVC in a Diagram
- The MVC Components
- Routing
- MVC Isn’t Good Enough
- Obese Models
- More Layers for All of the Things!
-
The Clean Architecture
- The Clean Architecture
- The Onion Architecture
-
Framework Independence
- The Problem with Frameworks
- Framework Independence
- This is a Lot of Work
-
Database Independence
- Domain Models
- Domain Services
- Database Infrastructure / Persistence
- Organizing the Code
- Wrapping it Up
-
External Agency Independence
- Using Interfaces, Adapters and Dependency Injection
- Benefits
-
MVC, and its Limitations
-
A Case Study in Clean Architecture
-
The Billing System
- Application Workflow
- Prerequisites
-
Building Our Domain
- Setting up the Project
- Creating the Entities
- Domain Services
- Wrapping it Up
-
Zend Framework 2 Setup
- Installing with Composer
- Cleaning up the Skeleton
- Setting up Our Database
- Table Gateway Factory
- Wrapping it Up
-
Our Application in Zend Framework 2
- Customer Management
- Order Management
- Invoice Management
-
Doctrine 2
- Rebuilding the Persistence Layer
- Creating Doctrine-based Repositories
- Entity Mapping
- Integrating Zend Framework and Doctrine
- Injecting the New Repositories
- Updating the Hydrators
- Summary
-
Switching to Laravel
- Setting up Laravel
- Configuring Doctrine
- Setting up the Dashboard
- Customer Management
- Order Management
- Invoice Management
- Next Steps
- Summary
-
The Billing System
The Leanpub 45-day 100% Happiness Guarantee
Within 45 days of purchase you can get a 100% refund on any Leanpub purchase, in two clicks.
See full terms
Do Well. Do Good.
Authors have earned$10,479,622writing, publishing and selling on Leanpub, earning 80% royalties while saving up to 25 million pounds of CO2 and up to 46,000 trees.
Learn more about writing on Leanpub
Free Updates. DRM Free.
If you buy a Leanpub book, you get free updates for as long as the author updates the book! Many authors use Leanpub to publish their books in-progress, while they are writing them. All readers get free updates, regardless of when they bought the book or how much they paid (including free).
Most Leanpub books are available in PDF (for computers), EPUB (for phones and tablets) and MOBI (for Kindle). The formats that a book includes are shown at the top right corner of this page.
Finally, Leanpub books don't have any DRM copy-protection nonsense, so you can easily read them on any supported device.
Learn more about Leanpub's ebook formats and where to read them
Top Books
- #1
Functional Programming Made Easier
Charles ScalfaniA Functional Programming book from beginner to advanced without skipping a single step along the way.
In my 40 years of programming, I've felt that programming books always let me down, especially Functional Programming books. So, I wrote the book I wish I had 5 years ago.
Functional Programming will never be easy, but it can be easier.
- #2
Rector - The Power of Automated Refactoring
Matthias Noback and Tomas VotrubaLearn how to automatically and continuously upgrade and improve your PHP code base
- #3
Continuous Delivery Pipelines
Dave FarleyThis practical handbook provides a step-by-step guide for you to get the best continuous delivery pipeline for your software.
- #4
CCIE SP v5.0
Łukasz Bromirski, Piotr Jablonski, and Nicholas RussoAre you striving to prepare to and pass CCIE SP lab exam? Take the opportunity and get this workbook! With the attached initial cfg files you will prepare yourself for the CCIE SP exam as well as learn SP technologies applicable to all kinds of today modern networks! This workbook covers blueprint topics and provides challenging examples.
- #5
CCIE Service Provider Version 4 Written and Lab Exam Comprehensive Guide
Nicholas RussoThe service provider landscape has changed rapidly over the past several years. Networking vendors are continuing to propose new standards, techniques, and procedures for overcoming new challenges while concurrently reducing costs and delivering new services. Cisco has recently updated the CCIE Service Provider track to reflect these changes; this book represents the author's personal journey in achieving that certification.
- #6
Atomic Kotlin
Bruce Eckel and Svetlana IsakovaFor both beginning and experienced programmers! From the author of the multi-award-winning Thinking in C++ and Thinking in Java and a Kotlin team member comes a book that breaks concepts into small, easy-to-digest "atoms," along with exercises supported by hints and solutions directly inside IntelliJ IDEA! Full support at www.AtomicKotlin.com.
- #7
C++20
Rainer GrimmC++20 is the next big C++ standard after C++11. As C++11 did it, C++20 changes the way we program modern C++. This change is, in particular, due to the big four of C++20: ranges, coroutines, concepts, and modules.
- #8
Practical FP in Scala: A hands-on approach
Gabriel VolpeA practical book aimed for those familiar with functional programming in Scala who are yet not confident about architecting an application from scratch.
Together, we will develop a purely functional application using the best libraries in the Cats ecosystem, while learning about design patterns and best practices.
- #9
Ansible for DevOps
Jeff GeerlingAnsible is a simple, but powerful, server and configuration management tool. Learn to use Ansible effectively, whether you manage one server—or thousands.
- #10
Introducing EventStorming
Alberto BrandoliniThe deepest tutorial and explanation about EventStorming, straight from the inventor.
- #11
The Hundred-Page Machine Learning Book
Andriy BurkovEverything you really need to know in Machine Learning in a hundred pages.
- #12
Technical Agile Coaching with the Samman method
Emily BacheThis book explains Samman Technical Coaching. It is a method for helping software teams to become more agile, learn Test-Driven Development, and raise the quality of their work.
- #13
Advanced Web Application Architecture
Matthias NobackThe missing manual for making your web applications future-proof
- #14
The Book of TameFlow
Steve TendonDo you need a high performance enterprise governance approach improving management, execution and delivery while dealing with multiple projects/products, events, stakeholders and teams? Giving you better bottom line results, faster time to market, less work, better predictability, happier employees, and delighted clients? Then learn about TameFlow!
- #15
Deep Learning with PyTorch Step-by-Step
Daniel Voigt GodoyIn 2019, I published a PyTorch tutorial on Towards Data Science and I was amazed by the reaction from the readers! Their feedback motivated me to write this book to help beginners start their journey into Deep Learning and PyTorch. I hope you enjoy reading this book as much as I enjoy writing it.
- #16
CCDE Practice Design Scenarios
Marwan AlshawiCreated by the author of the official 'CCDE Study Guide' book, and reviewed by CCDE Experts
By purchasing this book here, you will be entitled to all the updates and new additions to this book. These updates and additions are going to be very frequent to keep this book always as an interesting and valuable resource.
- #17
Everyday Rails - RSpecによるRailsテスト入門
Junichi Ito (伊藤淳一), AKIMOTO Toshiharu, 魚振江, and Aaron SumnerRSpecを使ってRailsアプリケーションに信頼性の高いテストを書く実践的なアドバイスを提供します。詳細で丁寧な説明は本書のオリジナルコンテンツです。また、説明には実際に動かせるサンプルアプリケーションも使用します。本書は2017年版にアップデートされ、RSpec 3.6やRails 5.1といった新しい環境に対応しています！さあ、自信をもってテストできるようになりましょう！
- #18
Hands-On Quantum Machine Learning With Python
Frank ZickertYou're interested in quantum computing and machine learning...
But you don't know how to get started? Let me help.
Hands-On Quantum Machine Learning With Python is your comprehensive guide to get started with Quantum Machine Learning - the use of quantum computing for computation of machine learning algorithms.
- #19
Ansible for Kubernetes
Jeff GeerlingAnsible is a powerful infrastructure automation tool. Kubernetes is a powerful application deployment platform. Learn how to use these tools to automate massively-scalable, highly-available infrastructure.
- #20
Learning Drupal 9 as a framework
Stef Van LooverenThis course is focused on development and will teach you advanced concepts of drupal 9, Object-oriented PHP, and Symfony components. After the course, you’ll be able to build robust and scalable software solutions of many kinds.
Top Bundles
- #1
CCIE Service Provider Ultimate Study Bundle
2 Books
Piotr Jablonski, Lukasz Bromirski, and Nick Russo have joined forces to deliver the only CCIE Service Provider training resource you'll ever need. This bundle contains a detailed and challenging collection of workbook labs, plus an extensively detailed technical reference guide. All of us have earned the CCIE Service Provider certification... - #2
Software Architecture for Developers: Volumes 1 & 2 - Technical leadership and communication
2 Books
"Software Architecture for Developers" is a practical and pragmatic guide to modern, lightweight software architecture, specifically aimed at developers. You'll learn:The essence of software architecture.Why the software architecture role should include coding, coaching and collaboration.The things that you really need to think about before... - #3
All the Books of The Medical Futurist
6 Books
We put together the most popular books from The Medical Futurist to provide a clear picture about the major trends shaping the future of medicine and healthcare. Digital health technologies, artificial intelligence, the future of 20 medical specialties, big pharma, data privacy, digital health investments and how technology giants such as Amazon... - #9
9 Books-Bundle: Shut Up and Code!
9 Books
"Shut up and code." Laughter in the audience. The hacker had just plugged in his notebook and started sharing his screen to present his super-smart Python script. "Shut up and code" The letters written in a white literal coding font on black background was the hackers' home screen background mantra. At the time, I was a first-year computer... - #10
The Python Craftsman
3 Books
The Python Craftsman series comprises The Python Apprentice, The Python Journeyman, and The Python Master. The first book is primarily suitable for for programmers with some experience of programming in another language. If you don't have any experience with programming this book may be a bit daunting. You'll be learning not just a programming...
