我有一个像这样的数组
Array
(
[0] => Array
(
[0] => 0
[1] => 1
[2] => 2
[3] => 3
[4] => 4
[5] => 5
[6] => 6
[7] => 7
[8] => 8
[9] => 9
[10] => 10
)
[1] => Array
(
[0] => 1
[1] => 2
[2] => 3
[3] => 4
[4] => 5
[5] => 6
[6] => 7
[7] => 8
[8] => 9
[9] => 10
)
[2] => Array
(
[0] => 2
[1] => 3
[2] => 4
[3] => 5
[4] => 6
[5] => 7
[6] => 8
[7] => 9
[8] => 10
)
[3] => Array
(
[0] => 3
[1] => 4
[2] => 5
[3] => 6
[4] => 7
[5] => 8
[6] => 9
[7] => 10
)
[4] => Array
(
[0] => 4
[1] => 5
[2] => 6
[3] => 7
[4] => 8
[5] => 9
[6] => 10
)
[5] => Array
(
[0] => 5
[1] => 6
[2] => 7
[3] => 8
[4] => 9
[5] => 10
)
[50] => Array
(
[0] => 125
[1] => 126
[2] => 127
[3] => 128
[4] => 129
[5] => 130
[6] => 131
[7] => 132
[8] => 133
[9] => 134
[10] => 135
)
[51] => Array
(
[0] => 126
[1] => 127
[2] => 128
[3] => 129
[4] => 130
[5] => 131
[6] => 132
[7] => 133
[8] => 134
[9] => 135
)
[52] => Array
(
[0] => 127
[1] => 128
[2] => 129
[3] => 130
[4] => 131
[5] => 132
[6] => 133
[7] => 134
[8] => 135
)
[53] => Array
(
[0] => 128
[1] => 129
[2] => 130
[3] => 131
[4] => 132
[5] => 133
[6] => 134
[7] => 135
)
)
我上传的完整列表;
我必须将这些值分组为最大的父级。 例如，上面的代码将导致：
Array
(
[0] => Array
(
[0] => 0
[1] => 1
[2] => 2
[3] => 3
[4] => 4
[5] => 5
[6] => 6
[7] => 7
[8] => 8
[9] => 9
[10] => 10
)
[50] => Array
(
[0] => 125
[1] => 126
[2] => 127
[3] => 128
[4] => 129
[5] => 130
[6] => 131
[7] => 132
[8] => 133
[9] => 134
[10] => 135
)
)
首先，我可以按值计数对它们进行排序，然后抓取最大值，但这是我的其他脚本的输出，可能会非常不同;
例如， 此输出有113个元素和两个组，但也许其他有8个组和80个元素 所以我需要一个解决方案来过滤所有重复的值，然后返回每个值组中最大的元素。
答案 0 :(得分：0)
如果源数组始终预先订购为：
[0,1,2],[1,2]，而不是[1,2],[0,1,2]，而不是[0,1,3,4],[1,2,4]）然后，这可以通过foreach：
function reduce_array(array $source)
{
$picked_mark=array();
$result=array();
foreach ($source as $key=>$subarray)
{
if (in_array(end($subarray),$picked_mark)) continue;
$result[$key]=$subarray;
$picked_mark[]=end($subarray);
}
return $result;
}