PHP two-dimensional array sorting

array_multisort($volume,SORT_DESC,$data);$data[] = array('volume' => 67, 'edition' => 2);
$data[] = array('volume' => 86, 'edition' => 1);
$data[] = array('volume' => 85, 'edition' => 6);
$data[] = array('volume' => 98, 'edition' => 2);
$data[] = array('volume' => 86, 'edition' => 6);
$data[] = array('volume' => 67, 'edition' => 7);

foreach($data as $key=>$val){
    $volume[$key] = $val['volume'];
    $edition[$key] = $val['edition'];
}

array_multisort($volume,SORT_DESC,$data);