PHP通过应用两级排序来对multidimesnion数组进行排序

Question

我有一个数组：

array(5) {
  [A] => array(2) {
    [price] => string(3) "800"
    [score] => string(1) "8"
  }
  [B] => array(2) {
    [price] => string(3) "800"
    [score] => string(2) "10"
  }
  [C] => array(2) {
    [price] => string(3) "800"
    [score] => string(2) "15"
  }
  [D] => array(2) {
    [price] => string(4) "1800"
    [score] => string(1) "4"
  }
  [E] => array(2) {
    [price] => string(4) "2800"
    [score] => string(1) "5"
  }
}

我已根据价格（ASC订单）成功排序：this

问题是如果价格相同，我还需要根据分数应用二级排序（最高分应该是第一个）。

所需的数组应该是：

array(
    5) {
      [C] => array(2) {
        [price] => string(3) "800"
        [score] => string(2) "15"
      }
      [B] => array(2) {
        [price] => string(3) "800"
        [score] => string(2) "10"
      }
      [A] => array(2) {
        [price] => string(3) "800"
        [score] => string(1) "8"
      }
      [D] => array(2) {
        [price] => string(4) "1800"
        [score] => string(1) "4"
      }
      [E] => array(2) {
        [price] => string(4) "2800"
        [score] => string(1) "5"
      }
    }

无法思考我必须走哪条路。有人可以帮忙吗。