https://github.com/medunes/gof-php

A playground of GoF, in PHP!
https://github.com/medunes/gof-php

Last synced: 4 months ago
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A playground of GoF, in PHP!

• Host: GitHub
• URL: https://github.com/medunes/gof-php
• Owner: MedUnes
• License: mit
• Created: 2021-03-20T20:51:14.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2021-03-20T20:54:31.000Z (over 4 years ago)
• Last Synced: 2025-04-06T09:29:48.690Z (6 months ago)
• Language: PHP
• Size: 305 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • Contributing: CONTRIBUTING.md
  • License: LICENSE.md

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README

          
 




    



A GoF playbook in PHP


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## ℹ️ So what is this?

A [GoF](https://www.amazon.de/Patterns-Elements-Reusable-Object-Oriented-Software/dp/0201633612/) playbook in PHP

## ℹ️ Some Learnings/quotes from the book

* The point of learning design patterns is to prime your toolkit with solution ideas,

  not to follow dogma when solving problems for a test.

* There's rarely a perfect choice in real-world scenarios. You have to balance trade-offs and decide what approach is best for the situation at hand.

* Strategy pattern and Visitor Pattern: two sides of the same coin?

> OOP are made up of objects. An object packages both data and the procedures that operate on that data.

> The procedures are typically called methods or operations.

> An object performs an operation when it receives a request (or message) from a client.

> Requests are the only way to get an object to execute an operation.

> Operations are the only way to change an object's internal data.

> Because of these restrictions, the only way to change an object's internal state is said to be encapsulated;

> it cannot be accessed directly

> Program to an interface, not to an implementation

* The latter should be delegated to creation design patterns.

> "Inheritance breaks encapsulation" - Alan Snyder (1986)

> Favoring object composition over class inheritance helps you keep each class encapsulated and focused on the task

* Seems like Delegation as explained in GoF is the basis of the Interface Segregation in SOLID, right ?

> In general, the runtime structures aren't clear from the code until you understand the patterns

> If applications are hard to design, and toolkits [packages] are harder, then frameworks are hardest of all

* Abstract Factories: On demand generic interacting **families** of interfaces!

#### Where to contribute?

[CONTRIBUTING](https://github.com/medunes/gof-php/blob/master/CONTRIBUTING.md)