如何在PHP中对多维数组进行排序，其中键实际上是值
I have a multi-dimensional array shown below that I want to sort by the 1st level dimension and then the 2nd level dimension within the 1st level.
I want the dates to be in chronological order and then then times, within the dates, to be in clock sequence.
Array
(
[2014-05-17] => Array
(
[0] => 17:30
[1] => 11:30
[2] => 13:30
[3] => 12:30
[4] => 12:30
)
[2014-06-21] => Array
(
[0] => 17:30
[1] => 10:30
[2] => 13:30
[3] => 09:30
[4] => 12:30
[5] => 09:30
[6] => 12:30
)
[2014-05-18] => Array
(
[0] => 17:30
[1] => 11:30
[2] => 13:30
[3] => 12:30
[4] => 12:30
)
)
Also, after I sort the times, I want to remove duplicates -- in other words I simply want the unique times within each date to be in clock order.
Here is what I would like to produce:
[2014-05-17] => Array ( [0] => 11:30 [1] => 12:30 [2] => 13:30 [3] => 17:30 )
[2014-05-18] => Array ( [0] => 11:30 [1] => 12:30 [2] => 13:30 [3] => 17:30 )
[2014-06-21] => Array ( [0] => 09:30 [1] => 10:30 [2] => 12:30 [3] => 13:30 [4] => 17:30 )
我有一个如下所示的多维数组，我希望按第一级维度排序，然后排序第二级 第1级中的维度。 p>
我希望日期按时间顺序排列，然后在日期内按时间顺序排列。 p>
此外，在我对时间进行排序之后，我想删除重复项 - 换句话说，我只是希望每个日期中的唯一时间按时钟顺序排列。
以下是我想要制作的内容： strong> p>
[2014-05-17] =＆gt; 数组
（
[0] =＆gt; 11:30
[1] =＆gt; 12:30
[2] =＆gt; 13:30
[3] =＆gt; 17:30
） p>
[2014-05-18] =＆gt; 数组
（
[0] =＆gt; 11:30
[1] =＆gt; 12:30
[2] =＆gt; 13:30
[3] =＆gt; 17:30
） p>
[2014-06-21] =＆gt; 数组
（
[0] =＆gt; 09:30
[1] =＆gt; 10:30
[2] =＆gt; 12:30
[3] =＆gt; 13:30
[4] =＆gt; 17:30
） p>
div> Array
（
[2014-05-17] =＆gt;数组
（
[0] =＆gt; 17:30
[1] =＆gt; 11:30
[ 2] =＆gt; 13:30
[3] =＆gt; 12:30
[4] =＆gt; 12:30
）
[2014-06-21] =＆gt;数组
（
[0] =＆gt; 17:30
[1] =＆gt; 10:30
[2] =＆gt; 13:30
[3] =＆gt; 09:30
[4] =＆gt; 12:30
[5] =＆gt; 09:30
[6] =＆gt; 12:30
）
[2014-05-18] =＆gt;数组
（\ n [0] =＆gt; 17:30
[1] =＆gt; 11:30
[2] =＆gt; 13:30
[3] =＆gt; 12:30
[4] =＆gt; ; 12:30
）
）
）\ n code> pre>
If your variable array name is $arrayDate, execute this:
ksort($arrayDate);
foreach($arrayDate as &$key){
$key = array_unique($key);
sort($key);
}