从数组中获取三个最高值 [英] Get three highest values from the array

问题描述

我想从我的数组中获得三个最高值，但它也应该按键正确排序.

I want to get three highes values from my array, but it should be sorted properly by keys also.

我有这个代码:

<?php
$a = array(130, 1805, 1337);
arsort($a);
print_r($a);
?>

上面的输出如下:

Array
(
    [1] => 1805
    [2] => 1337
    [0] => 130
)

它工作正常，但我希望它另外将其键从最高值排序到最低值.

Its working fine, but I want it additionaly to sort its keys from the highest to the lowest value.

示例:

Array
(
    [2] => 1805
    [1] => 1337
    [0] => 130
)

要清楚:我希望它按键排序:数组键号 2 将始终用于 最高 值，数组键号 0 将始终用于 最低值.

To be clear: I want it be to sorted by the keys: array key number 2 will be always used for the highest value, array key number 0 will be always used for the lowest value.

我该怎么做?

/如果你不明白什么，请告诉我.

推荐答案

rsort($array);
$top3 = array_reverse(array_slice($array, 0, 3));

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