标签: array-sum

我已经看到各种关于这个问题的帖子,所以我知道可能存在一些答案.但阅读这些之后,我并不聪明.

我有一个类似如下的数组.

[0] => Array
    (
        [id] => 95659865986
        [invoiceNumber] => 6374324
        [invoiceTitle] => Monthly
        [invoiceStatus] => Paid
        [accountId] => 6235218753
        [totalExVat] => 158.95
        [dateCreated] => 1 Apr 2012
        [vatAmount] => 20.00
    )

我想做的就是vatAmount对这个数组的值进行数组求和.

由于以下似乎没有做太多.

(array_sum($account_invoices['vatAmount'])

如果我在PHP中有一个多维数组,那么......

    [0] => Array
    (
        [url] => http://domain1.com
        [domain] => domain1.com
        [values] => Array
            (
                [character_length] => 25
                [word_count] => 7
            )

    )

    [1] => Array
    (
        [url] => http://domain2.com
        [domain] => domain2.com
        [values] => Array
            (
                [character_length] => 30
                [word_count] => 7

    )

如何将它们合并以生产....

    [0] => Array
    (
        [url] => *can be anything*
        [domain] => *can be anything*
        [values] => Array
            (
                [character_length] => 55
                [word_count] => 14
            )

    )

我的代码中有这个数组

Array
(
    [1] => Array
        (
            [1] => 4
            [5] => 7
        )

    [2] => Array
        (
            [1] => 2
            [5] => 5
        )

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

    [4] => Array
        (
            [1] => 6
            [5] => 9
        )

    [5] => Array
        (
            [1] => 6
            [5] => 8
        )

)
1

如何获得具有相同索引的元素的总和？例如 - 具有索引5或索引的所有元素的总和1。是否可以不对列/键值进行硬编码？