final public static function checkGlobal ($option='') : array
	{
		if (!static::hasValue($option)) new ErrorCode(1001);
		$fieldGlobals = ["POST","GET","REQUEST","FILES","COOKIE","SESSION"];
		if (!in_array(strtoupper($option), $fieldGlobals)) 
			new ErrorCode(1001);
		else
			return $GLOBALS["_".strtoupper($option)];
	}