Most Common Design Patterns Repository & Contracts https://www.developer.com/design/the-repository-pattern-in-php/ https://www.php.net/manual/en/language.oop5.interfaces.php Adapter & Model https://refactoring.guru/design-patterns/adapter https://www.geeksforgeeks.org/mvc-design-pattern/ Factory Method https://refactoring.guru/design-patterns/factory-method/php/example#lang-features