根据 2D 数组对 2D 数组进行排序 - Sort 2D array according

Sort 2D array according

本文关键字：数组 2D 排序根据 | 更新日期: 2023-09-27

我想根据字段年份对以下 2D 数组进行排序？

Array
(
[0] => Array
(
    [from] => 44.91
    [to] => 53.56
    [next] => 108.88
    [year] => 2011
), 
[1] => Array
(
    [from] => 44.44
    [next] => 53.16
    [year] => 2010
), 
[2] => Array
(
    [from] => 42.83
    [next] => 51.36
    [year] => 2012
)
);

所以期望的结果将是：

Array
(
[1] => Array
(
    [from] => 44.44
    [next] => 53.16
    [year] => 2010
), 
[0] => Array
(
    [from] => 44.91
    [to] => 53.56
    [next] => 108.88
    [year] => 2011
),
[2] => Array
(
    [from] => 42.83
    [next] => 51.36
    [year] => 2012
)
);

你试过用uasort()吗？

function cmp_year($a, $b) {
    if($a['year'] == $b['year']) return 0;
    return ($a['year'] < $b['year']) ? -1 : 1;
}
uasort($your_array, 'cmp_year');

您可以使用array_multisort() .

foreach ($arr as $k => $v) {
  $years[$k] = $v['year'];
}
array_multisort($years, SORT_DESC, $arr);