PHP数组查找重复，总结他们向上和删除重复 [英] php array find duplicates, sum them up & delete duplicates

问题描述

我有一个数组：

Array 
(
[0] => Array
    (
        [setid] => 2
        [income] => 100
    )

[1] => Array
    (
        [setid] => 2
        [income] => 120
    )

[2] => Array
    (
        [setid] => 3
        [income] => 700
    )
)

我需要找到具有相同SETID entrys，总结他们的收入和删除重复entrys - 到底应该是这样的：

i need to find entrys with the same setid, sum their income up and delete duplicate entrys - in the end it should look like this:

Array
(
[0] => Array
    (
        [setid] => 2
        [income] => 220
    )

[1] => Array
    (
        [setid] => 3
        [income] => 700
    )
)

没有人知道我的问题sophosticated溶液或做我必须走漫长的道路，并手动执行每一步？

does someone know a sophosticated solution for my problem or do i have to take the long road and do every step manually?

感谢和问候

推荐答案

只要创建一个新的阵列，您可以通过使用SETID为重点进行快速adressable。并重新索引末尾的数组。

Just create a new array which you make fast adressable by using the setid as key. And reindex the array at the end.

$result = array();
foreach ($array as $val) {
    if (!isset($result[$val['setid']]))
        $result[$val['setid']] = $val;
    else
        $result[$val['setid']]['income'] += $val['income'];
}
$result = array_values($result); // reindex array

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