What are PHP design patterns

PHP design patterns are standard solutions to common software design problems that arise during PHP application development. They provide a template for how to solve problems in a way that is reusable, maintainable, and scalable, leading to more robust code. By using design patterns, developers can improve code organization and facilitate easier collaboration among team members.

Some commonly used PHP design patterns include:

  • Singleton
  • Factory
  • Observer
  • Decorator
  • Strategy

Here’s a simple example of the Singleton design pattern in PHP:

<?php class Singleton { private static $instance = null; private function __construct() { // Private constructor to prevent instantiation } public static function getInstance() { if (self::$instance == null) { self::$instance = new Singleton(); } return self::$instance; } } // Usage $singleton1 = Singleton::getInstance(); $singleton2 = Singleton::getInstance(); var_dump($singleton1 === $singleton2); // true ?>

PHP design patterns Singleton pattern design pattern examples PHP application development

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