Portal coding question

[Ortixx]

I have this code

$uploaddir = dirname(__FILE__) . '/upload/';
$imagedir = dirname(__FILE__) . '/images/';

i want it to go a folder up and then into another folder called test

i remember this but it gives me errors

$uploaddir = dirname(__FILE__) . '../test/upload/';
$imagedir = dirname(__FILE__) . '../test/images/';

how do i have to make it go up 1 directory and then into another.