如何在键具有数组的多维数组中求和所有相同的键值？

Posted 2021-05-06

如何在php中通过关联键添加所有列值？请注意，[1GB]键是动态的

Array(
[0] => Array
        (
            [1GB] => array(1,2,1,3)
            [2GB] => array(1,2,1,3)
        )
[1] => Array
        (
            [1GB] => array(1,2,1,3)
            [2GB] => array(1,2,1,3)
            [5GB] => array(1,2,1,3)
        )
[2] => Array
        (
            [3GB] => array(1,2,1,3)
            [4GB] => array(1,2,1,3)
        )
[2] => Array
        (
            [3GB] => array(1,2,1,3)
            [4GB] => array(1,2,1,3)
        )
)

期望的结果：

Array(
[1GB] => array(2,3,2,6)
[2GB] => array(2,3,2,6)
[3GB] => array(1,2,1,3)
[4GB] => array(1,2,1,3)
[5GB] => array(1,2,1,3)

)

答案

我可能误解了一些东西，因为我没有得到你所展示的相同输出，无论如何，它可能有助于实现你想要的答案

$dataset = [
    [
        ['1GB' => [1, 2, 1, 3]],
        ['2GB' => [1, 2, 1, 3]],
    ],
    [
        ['1GB' => [1, 2, 1, 3]],
        ['2GB' => [1, 2, 1, 3]],
        ['5GB' => [1, 2, 1, 3]],
    ],
    [
        ['3GB' => [1, 2, 1, 3]],
        ['4GB' => [1, 2, 1, 3]],
    ],
    [
        ['3GB' => [1, 2, 1, 3]],
        ['4GB' => [1, 2, 1, 3]],
    ]
];

$resume = [];

foreach ($dataset as $data) {
    foreach ($data as $item) {
        foreach ($item as $key => $value) {
            if (!array_key_exists($key, $resume)) {
                $resume[$key] = $value;
            } else {
                foreach ($value as $index => $number) {
                    $resume[$key][$index] += $number;
                }
            }
        }
    }
}

ksort($resume);

print_r($resume);

产量

Array
(
    [1GB] => Array
        (
            [0] => 2
            [1] => 4
            [2] => 2
            [3] => 6
        )

    [2GB] => Array
        (
            [0] => 2
            [1] => 4
            [2] => 2
            [3] => 6
        )

    [3GB] => Array
        (
            [0] => 2
            [1] => 4
            [2] => 2
            [3] => 6
        )

    [4GB] => Array
        (
            [0] => 2
            [1] => 4
            [2] => 2
            [3] => 6
        )

    [5GB] => Array
        (
            [0] => 1
            [1] => 2
            [2] => 1
            [3] => 3
        )
)