对二维数组某一个字段相同的数组合并起来

 例子：array(3) {
  [0]=>
  array(16) {
    ["id"]=>
    string(2) "42"
    ["uid"]=>
    string(2) "14"
    ["euid"]=>
    string(2) "56"
    ["did"]=>
    string(1) "1"
    ["nid"]=>
    string(1) "0"
    ["phonetime"]=>
    string(10) "1443927600"
    ["createtime"]=>
    string(10) "1443880619"
    ["type"]=>
    string(1) "3"
    ["status"]=>
    string(1) "0"
    ["atype"]=>
    string(1) "1"
    ["mtype"]=>
    string(1) "2"
    ["endtime"]=>
    string(1) "0"
    ["time"]=>
    string(10) "10月04日"
    ["date"]=>
    string(6) "周日"
    ["uname"]=>
    NULL
    ["album"]=>
    string(0) ""
  }
  [1]=>
  array(16) {
    ["id"]=>
    string(2) "40"
    ["uid"]=>
    string(2) "14"
    ["euid"]=>
    string(2) "56"
    ["did"]=>
    string(1) "1"
    ["nid"]=>
    string(1) "0"
    ["phonetime"]=>
    string(10) "1444359600"
    ["createtime"]=>
    string(10) "1444268595"
    ["type"]=>
    string(1) "3"
    ["status"]=>
    string(1) "0"
    ["atype"]=>
    string(1) "1"
    ["mtype"]=>
    string(1) "2"
    ["endtime"]=>
    string(1) "0"
    ["time"]=>
    string(10) "10月09日"
    ["date"]=>
    string(6) "周五"
    ["uname"]=>
    NULL
    ["album"]=>
    string(0) ""
  }
  [2]=>
  array(16) {
    ["id"]=>
    string(2) "43"
    ["uid"]=>
    string(1) "2"
    ["euid"]=>
    string(2) "56"
    ["did"]=>
    string(1) "1"
    ["nid"]=>
    string(1) "0"
    ["phonetime"]=>
    string(10) "1444359620"
    ["createtime"]=>
    string(10) "1444268595"
    ["type"]=>
    string(1) "3"
    ["status"]=>
    string(1) "0"
    ["atype"]=>
    string(1) "1"
    ["mtype"]=>
    string(1) "2"
    ["endtime"]=>
    string(1) "0"
    ["time"]=>
    string(10) "10月09日"
    ["date"]=>
    string(6) "周五"
    ["uname"]=>
    NULL
    ["album"]=>
    string(0) ""
  }
}

现在想要对这个二维数组下的元素，time相同的合并到同一数组下。想要的效果为：
array(2) {  ["10月04日"]=>  array(1) {    [0]=>    array(16) {      ["id"]=>      string(2) "42"      ["uid"]=>      string(2) "14"      ["euid"]=>      string(2) "56"      ["did"]=>      string(1) "1"      ["nid"]=>      string(1) "0"      ["phonetime"]=>      string(10) "1443927600"      ["createtime"]=>      string(10) "1443880619"      ["type"]=>      string(1) "3"      ["status"]=>      string(1) "0"      ["atype"]=>      string(1) "1"      ["mtype"]=>      string(1) "2"      ["endtime"]=>      string(1) "0"      ["time"]=>      string(10) "10月04日"      ["date"]=>      string(6) "周日"      ["uname"]=>      NULL      ["album"]=>      string(0) ""    }  }  ["10月09日"]=>  array(2) {    [0]=>    array(16) {      ["id"]=>      string(2) "40"      ["uid"]=>      string(2) "14"      ["euid"]=>      string(2) "56"      ["did"]=>      string(1) "1"      ["nid"]=>      string(1) "0"      ["phonetime"]=>      string(10) "1444359600"      ["createtime"]=>      string(10) "1444268595"      ["type"]=>      string(1) "3"      ["status"]=>      string(1) "0"      ["atype"]=>      string(1) "1"      ["mtype"]=>      string(1) "2"      ["endtime"]=>      string(1) "0"      ["time"]=>      string(10) "10月09日"      ["date"]=>      string(6) "周五"      ["uname"]=>      NULL      ["album"]=>      string(0) ""    }    [1]=>    array(16) {      ["id"]=>      string(2) "43"      ["uid"]=>      string(1) "2"      ["euid"]=>      string(2) "56"      ["did"]=>      string(1) "1"      ["nid"]=>      string(1) "0"      ["phonetime"]=>      string(10) "1444359620"      ["createtime"]=>      string(10) "1444268595"      ["type"]=>      string(1) "3"      ["status"]=>      string(1) "0"      ["atype"]=>      string(1) "1"      ["mtype"]=>      string(1) "2"      ["endtime"]=>      string(1) "0"      ["time"]=>      string(10) "10月09日"      ["date"]=>      string(6) "周五"      ["uname"]=>      NULL      ["album"]=>      string(0) ""    }  }}
那么。。。代码很简单，没有想象的那么复杂，想要的结果是个三维数组
$result 为原二维数组
  

$res = array(); //想要的结果
        foreach ($result as $k => $v) {
            $res[$v['time']][] = $v;
        }