PHP Singleton pattern example

UserSingleton.php

<?php

/** Example taken from http://www.webgeekly.com/tutorials/php/how-to-create-a-singleton-class-in-php/ **/

class User
{
    // Hold an instance of the class
    private static $instance;
 
    // The singleton method
    public static function singleton()
    {
        if (!isset(self::$instance)) {
            self::$instance = new __CLASS__;
        }
        return self::$instance;
    }
    
}

$user1 = User::singleton();
$user2 = User::singleton();
$user3 = User::singleton();


?>