二维数组获取[0]中的最小值 ,不用foreach能实现么

Question

Array
(

[0] => Array
    (
        [0] => 2302.584947794
        [1] => 101.15895956
        [2] => 12.75454512
        [3] => 101.15966917
        [4] => 12.75477834
        [5] => IP-18
        [6] => 81.206013052569
    )

[1] => Array
    (
        [0] => 2246.417985088
        [1] => 101.15966917
        [2] => 12.75477834
        [3] => 101.16010696
        [4] => 12.75505223
        [5] => IP-19
        [6] => 56.404274084604
    )

[2] => Array
    (
        [0] => 1691.6631062007
        [1] => 101.16010696
        [2] => 12.75505223
        [3] => 101.16497604
        [4] => 12.75676244
        [5] => IP-20
        [6] => 561.22606339766
    )

[3] => Array
    (
        [0] => 1557.2023182431
        [1] => 101.16497604
        [2] => 12.75676244
        [3] => 101.16626033
        [4] => 12.75702079
        [5] => IP-21
        [6] => 142.20629773296
    )

[4] => Array
    (
        [0] => 935.43161538359
        [1] => 101.16626033
        [2] => 12.75702079
        [3] => 101.17448591
        [4] => 12.75689155
        [5] => IP-22
        [6] => 892.13810685202
    )

[5] => Array
    (
        [0] => 914.43314719378
        [1] => 101.17448591
        [2] => 12.75689155
        [3] => 101.17531546
        [4] => 12.75672233
        [5] => IP-23
        [6] => 91.907117038458
    )

Answer 1

<?php $arr = [ [150, 'a'], [60, 'b'], [80, 'c'], [100, 'd'] ]; $sort_column = array_column($arr, 0);// 得到要排序的列 array_multisort($arr, SORT_ASC, $sort_column);// 按该列进行升序排序 $min_value = $arr[0][0];// 得到最小值 print_r($min_value);

Answer 2

这不是应该直接 min(array)么?