Book Image

The Art of Modern PHP 8

By : Joseph Edmonds
5 (1)
Book Image

The Art of Modern PHP 8

5 (1)
By: Joseph Edmonds

Overview of this book

PHP has come a long way since its introduction. While the language has evolved with PHP 8, there are still a lot of websites running on a version of PHP that is no longer supported. If you are a PHP developer working with legacy PHP systems and want to discover the tenants of modern PHP, this is the book for you. The Art of Modern PHP 8 walks you through the latest PHP features and language concepts. The book helps you upgrade your knowledge of PHP programming and practices. Starting with object-oriented programming (OOP) in PHP and related language features, you'll work through modern programming techniques such as inheritance, understand how it contrasts with composition, and finally look at more advanced language features. You'll learn about the MVC pattern by developing your own MVC system and advance to understanding what a DI container does by building a toy DI container. The book gives you an overview of Composer and how to use it to create reusable PHP packages. You’ll also find techniques for deploying these packages to package libraries for other developers to explore. By the end of this PHP book, you'll have equipped yourself with modern server-side programming techniques using the latest versions of PHP.

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Table of Contents (19 chapters)
Preface
Preface
Who this book is for
What this book covers
To get the most out of this book
Download the example code files
Conventions used
Get in touch
Share Your Thoughts
1
Section 1 – PHP 8 OOP
Section 1 – PHP 8 OOP
Free Chapter
2
Chapter 1: Object-Oriented PHP
Chapter 1: Object-Oriented PHP
What is OOP?
PHP OOP basics
Summary
3
Chapter 2: Inheritance and Composition, Encapsulation and Visibility, Interfaces and Concretions
Chapter 2: Inheritance and Composition, Encapsulation and Visibility, Interfaces and Concretions
Encapsulation and visibility
Inheritance–the classical parent, child, and "is a" style
Composition–the modern, flexible "has a" style
Summary
4
Chapter 3: Advanced OOP Features
Chapter 3: Advanced OOP Features
SPL – the Standard PHP Library
Exceptions and error handling
Meta-programming with reflection and attributes
Summary
5
Section 2 – PHP Types
Section 2 – PHP Types
6
Chapter 4: Scalar, Arrays, and Special Types
Chapter 4: Scalar, Arrays, and Special Types
Scalar types
Arrays and iterables
Nullable, void, and uninitialized
Resources
Summary
7
Chapter 5: Object Types, Interfaces, and Unions
Chapter 5: Object Types, Interfaces, and Unions
Object type inheritance
Summary
8
Chapter 6: Parameter, Property, and Return Types
Chapter 6: Parameter, Property, and Return Types
Coercive and strict modes
Covariance and contravariance
Summary
9
Section 3 – Clean PHP 8 Patterns and Style
Section 3 – Clean PHP 8 Patterns and Style
10
Chapter 7: Design Patterns and Clean Code
Chapter 7: Design Patterns and Clean Code
Clean Code Acronyms (CCA)
Design patterns
Summary
11
Chapter 8: Model, View, Controller (MVC) Example
Chapter 8: Model, View, Controller (MVC) Example
Model, View, Controller – MVC
Controller
Model
View
It lives
Summary
12
Chapter 9: Dependency Injection Example
Chapter 9: Dependency Injection Example
Inversion of control container
Dependency injection and the service locator
The service locator anti-pattern
Summary
13
Section 4 – PHP 8 Composer Package Management (and PHP 8.1)
Section 4 – PHP 8 Composer Package Management (and PHP 8.1)
14
Chapter 10: Composer For Dependencies
Chapter 10: Composer For Dependencies
What is Composer?
Composer autoloader
Using Composer to require packages
Version constraints
Dev and prod dependencies
Summary
15
Chapter 11: Creating Your Own Composer Package
Chapter 11: Creating Your Own Composer Package
Writing composer.json
Using source folders and namespaces
Executable Binaries Configured under bin
Using versions and tagging
Private Git repos as Composer dependencies
Publishing on Packagist
Summary
16
Section 5 – Bonus Section - PHP 8.1
Section 5 – Bonus Section - PHP 8.1
17
Chapter 12: The Awesomeness That Is 8.1
Chapter 12: The Awesomeness That Is 8.1
Enumerations
Readonly properties
Intersection types
Never return type
Final constants
Summary – end of the book
Why subscribe?
18
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Model, View, Controller – MVC

When working with modern object-oriented programming (OOP) frameworks in PHP, such as Symfony or Laravel, the first pattern you are going to see is called MVC – Model, View, Controller (https://w.wiki/znd).

In MVC, your application is split into three main areas. I think you can guess what the names are!

These three areas are as follows:

  • Model: The data for your application – including CRUD (create, retrieve, update, delete).
  • View: The visual – taking data and creating the output (usually HTML for PHP developers).
  • Controller: The bit that handles requests. It uses the model to process data and prepare it for the View, then passes it to the View for rendering before finally serving back up as a response.

To assist with understanding MVC, I've put together a very simple "toy" MVC application. It is deliberately simple and lacks many features provided by full-blown frameworks, but I hope...

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