在php中使用组合日期和时间对数组数据进行排序答案

【问题标题】：Sorting array data with a combine date and time in php在php中使用组合日期和时间对数组数据进行排序
【发布时间】：2019-02-21 06:47:52
【问题描述】：

我有如下数组，如何结合日期和时间降序对数据进行排序？

$manifest = array(
    array("date"=>2019-02-21,"time"=>04:49:54,"desc"=>"arrived in indonesia"),
    array("date"=>2019-02-25,"time"=>04:02:21,"desc"=>"arrived in soppeng"),
    array("date"=>2019-02-22,"time"=>01:42:51,"desc"=>"arrived in makassar"),
    array("date"=>2019-02-22,"time"=>02:42:51,"desc"=>"arrived in makassar gateway"),
);

预期结果：

$manifest = array(
    array("date"=>2019-02-25,"time"=>04:02:21,"desc"=>"arrived in soppeng"),
    array("date"=>2019-02-22,"time"=>02:42:51,"desc"=>"arrived in makassar gateway"),
    array("date"=>2019-02-22,"time"=>01:42:51,"desc"=>"arrived in makassar"),
    array("date"=>2019-02-21,"time"=>04:49:54,"desc"=>"arrived in indonesia")
    );

感谢帮助

【问题讨论】：

在Minimal, Complete, and Verifiable example 中向我们展示您迄今为止所做的尝试，您将获得帮助
@AbuAyyub 你试过在我的帖子中使用array_multisort吗？
重复stackoverflow.com/questions/17364127/…
@04fs 这不是重复的

标签： php arrays sorting multidimensional-array

【解决方案1】：

$arr = $manifest;

usort($arr, function($a, $b) {
  $ad = new DateTime($a['date'] ." ". $a['time']);
  $bd = new DateTime($b['date']." ". $a['time']);

  if ($ad == $bd) {
    return 0;
  }

  return $ad < $bd ? 1 : -1;
});

【讨论】：

【解决方案2】：

我解决了我自己，我正在使用

usort($manifest,function($a,$b){
   return strtotime($b['date']." ".$b['time']) - strtotime($a['date']." ".$a['time']);
});

感谢大家帮助我。

【讨论】：

您可以将您的答案标记为已接受，以便显示此问题已解决（或其他答案，如果您愿意的话）

【解决方案3】：

您可以使用rsort()，它将按降序对数组进行排序。

<?php
$manifest = array(
  array("date"=>"2019-02-21","time"=>"04:49:54","desc"=>"arrived in indonesia"),
  array("date"=>"2019-02-25","time"=>"04:02:21","desc"=>"arrived in soppeng"),
  array("date"=>"2019-02-22","time"=>"01:42:51","desc"=>"arrived in makassar"),
  array("date"=>"2019-02-22","time"=>"02:42:51","desc"=>"arrived in makassar gateway")
);

rsort($manifest);

echo '<pre>';print_r($manifest);echo '</pre>';
?>

输出：

Array
(
    [0] => Array
        (
            [date] => 2019-02-25
            [time] => 04:02:21
            [desc] => arrived in soppeng
        )

    [1] => Array
        (
            [date] => 2019-02-22
            [time] => 02:42:51
            [desc] => arrived in makassar gateway
        )

    [2] => Array
        (
            [date] => 2019-02-22
            [time] => 01:42:51
            [desc] => arrived in makassar
        )

    [3] => Array
        (
            [date] => 2019-02-21
            [time] => 04:49:54
            [desc] => arrived in indonesia
        )

)

【讨论】：

【解决方案4】：

array-multisort怎么样？

array_multisort(array_column($manifest, 'date'), SORT_DESC, array_column($manifest, 'time'), SORT_DESC, $manifest);

就这么简单

【讨论】：