PHP：根据值列表排序多维数组[重复]

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这个问题在这里已有答案:

How can I sort arrays and data in PHP? 9 answers

如何在PHP中对数组和数据进行排序? 9个答案

Given this array:

给定这个数组:

Array
(
    [0] => Array
        (
            [status] => closed
            [userModifiedAt] => 2015-12-09T11:47:46Z
        )

    [1] => Array
        (
            [status] => active
            [userModifiedAt] => 2016-02-08T16:43:26Z
        )

    [2] => Array
        (
            [status] => closed
            [userModifiedAt] => 2016-03-31T03:47:19Z
        )

    [3] => Array
        (
            [status] => pending
            [userModifiedAt] => 2015-12-08T14:09:58Z
        )

I'd like to order it by [status] with this order: - pending - active - closed

我想通过[status]订购此订单: - 待处理 - 活动 - 已关闭

And for each status, order by [userModifiedAt].

对于每个状态,按[userModifiedAt]排序。

I'm using this code:

我正在使用此代码:

usort($array, function($a,$b){ return strcmp($a['status'], $b['status']);} );

But it works alphabetically, so the status is ordered as: - active - closed - pending

但它按字母顺序排列,因此状态按以下顺序排序: - 活动 - 关闭 - 待定

How can I order an array according to a predefined order list?

如何根据预定义的订单列表订购数组?

1 个解决方案

#1

This would be a trick -

这将是一个伎俩 -

## A array with the orders to be considered
$order = array('active' => 1, 'closed' => 2, 'pending' => 3);

usort($array, function($a, $b) use($order) { // Use the order array to compare
    return $order[$a[status]] - $order[$b[status]];
});

var_dump($array);

Output

array(4) {
  [0]=>
  array(2) {
    ["status"]=>
    string(6) "active"
    ["userModifiedAt"]=>
    string(20) "2016-02-08T16:43:26Z"
  }
  [1]=>
  array(2) {
    ["status"]=>
    string(6) "closed"
    ["userModifiedAt"]=>
    string(20) "2015-12-09T11:47:46Z"
  }
  [2]=>
  array(2) {
    ["status"]=>
    string(6) "closed"
    ["userModifiedAt"]=>
    string(20) "2016-03-31T03:47:19Z"
  }
  [3]=>
  array(2) {
    ["status"]=>
    string(7) "pending"
    ["userModifiedAt"]=>
    string(20) "2015-12-08T14:09:58Z"
  }
}

Change the order array if you want different order. Key with lowest value will be first on the array. If you want closed to be first then provide the lowest value to it in $order array.

如果您想要不同的订单,请更改订单数组。具有最低值的键将首先在阵列上。如果你想先关闭,那么在$ order数组中为它提供最低值。

DEMO

#1