just another singleton pattern

php singleton pattern

<?php
class Singleton
{
    protected static $instance = null;

    protected function __construct()
    {

    }

    protected function __clone()
    {

    }
    
    protected function __wakeup()
    {

    }

    public static function getInstance()
    {
        if (!isset(static::$instance)) {
            static::$instance = new static;
        }
        return static::$instance;
    }
}
?>