error_reporting(E_ALL|E_STRICT);  
ini_set('display_errors', true); 

abstract class Singleton 
{  
    private static $instances = array(); 

    final public static function getInstance()  
    {  
        $class = get_called_class(); 
        if (empty(self::$instances[$class])) { 
            $rc = new ReflectionClass($class);
            self::$instances[$class] = $rc->newInstanceArgs(func_get_args()); 
        } 
        return self::$instances[$class]; 
    }  

    protected function __construct() 
    {} 

    final private function __clone() 
    {} 
}  

class ConcreteSingleton extends Singleton  
{ 
    protected function __construct($string, Array $array) 
    { 
        echo __METHOD__ . '(' . $string . ', ' . print_r($array, true) . ')'; 
    } 
}  

$test = ConcreteSingleton::getInstance('Hello World', array(1,2,3));