我有一个如下所示的数组。我想找到“差异”索引中数字最小的数组。所以在这种情况下，我想取回数组 [7]。我只需要数组编号(即 7)，不需要任何其他信息。
我知道我可以使用 array_column 轻松找到最小数字，但我如何返回 7 的整体数组索引？
[1] => Array
(
[qb] => 7
[rb] => 58
[wr] => 91
[te] => 3
[def] => 11
[diff] => 136
)
[2] => Array
(
[qb] => 21
[rb] => 96
[wr] => 102
[te] => 48
[def] => 15
[diff] => 240
)
[3] => Array
(
[qb] => 23
[rb] => 86
[wr] => 216
[te] => 6
[def] => 32
[diff] => 287
)
[4] => Array
(
[qb] => 30
[rb] => 51
[wr] => 200
[te] => 14
[def] => 17
[diff] => 266
)
[5] => Array
(
[qb] => 17
[rb] => 118
[wr] => 273
[te] => 14
[def] => 30
[diff] => 380
)
[6] => Array
(
[qb] => 10
[rb] => 112
[wr] => 142
[te] => 16
[def] => 4
[diff] => 264
)
[7] => Array
(
[qb] => 2
[rb] => 50
[wr] => 135
[te] => 9
[def] => 20
[diff] => 104
)
[8] => Array
(
[qb] => 16
[rb] => 68
[wr] => 141
[te] => 12
[def] => 1
[diff] => 224
)
最佳答案
正如您所说，您可以使用 array_column 和 min()。
然后使用 array_search 找到最小值所在的位置。
//Since the array starts with key 1 then use array_values to reset the array first.
$array = array_values($array);
$diff = array_column($array, "diff");
$min = min($diff);
$key = array_search($min, $diff);
$result = $array[$key];
工作示例:
https://3v4l.org/ci70K
关于php - 如何找到数组中的最小数字并返回该数组的主索引？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/57013532/