在PHP中获取多维数组的总和

Question

我需要获取每个指定月份的数组中所有数值的总和。理想情况下，它将返回以下格式。

四月

总计= 22

三月

总计=＆＃39;总和＆＃39;

Array
    (
        [April] => Array
            (
                [0] => 1
                [1] => 2
                [2] => 3
                [3] => 
                [4] => 3
                [5] => 
                [6] => 2
                [7] => 6
                [8] => 3
                [9] => 2
            )

        [March] => Array
            (
                [0] => 3.19198
                [1] => 2.52219
                [2] => 3.40053
                [3] => 2.42639
                [4] => 3.92301
                [5] => 3.23758
                [6] => 3.22457
                [7] => 2.62855
            )

Answer 1

使用array_sum()在每个子阵列上应用array_map()：

$result = array_map('array_sum', $data);

输出：

Array
(
    [April] => 22
    [March] => 24.5548
)

Demo