PHP 2차원 배열 시간 정렬 구현 코드

function arraySort($arr, $keys, $type = 'asc') {
    $keysvalue = $new_array = array();
    foreach ($arr as $k => $v){
      $keysvalue[$k] = $v[$keys];
    }
    $type == 'asc' ? asort($keysvalue) : arsort($keysvalue);
    reset($keysvalue);
    foreach ($keysvalue as $k => $v) {
      $new_array[$k] = $arr[$k];
    }
    return $new_array;
  }
$arr[] = array("name"=>"1","time"=>1) ;
$arr[] = array("name"=>"2","time"=>2);
arraySort($arr,"time","desc");