gistfile1.aw

$state=array('song'=>'FALSE', 'artist'=>'FALSE', 'votes'=>'FALSE');

$order = 'song';
if (isset($_GET['order'])){
    $order = $_GET['order'];
    echo $state[$order]." ";
    $state[$order] = ! $state[$order];
    echo $state[$order]." ";
}

if($state[$order])
    $sort = 'DESC';
else
    $sort = 'ASC';
echo $sort;