Question

我有这个数组：

Array
(
    [0] => Array
        (
            [Banana] => Array
                (
                    [BIL_RateNonTaxed] => 126
                )
            [Cherry] => Array
                (
                    [BIL_RateNonTaxed] => 60
                )
        )
    [1] => Array
        (
            [Cherry] => Array
                (
                    [BIL_RateNonTaxed] => 105
                )
        )
)

我怎样才能得到这样的东西：

$Banana  = Get all `BIL_RateNonTaxed` for `Banana` = 126
$Cherry  = Get all `BIL_RateNonTaxed` for `Cherry` = 165

在问你之前我尝试过的是：

$Cherry = implode(',', array_map(function($el){ return $el['Cherry']['BIL_RateTaxed']; }, $datas));

$Banana = implode(',', array_map(function($el){ return $el['Banana']['BIL_RateTaxed']; }, $datas));

我的错误是什么？

非常感谢你的帮助。

Answer 1

Not sure what you expect from the implode but just replace it with array_sum:

$Cherry = array_sum(array_map(function($el) {
                                  return $el['Cherry']['BIL_RateTaxed'];
                              }, $datas));

Answer 2

You could also try summing a nested array_column.

$fruit = 'Banana';
$rateType = 'BIL_RateNonTaxed';

$banana = array_sum(array_column(array_column($datas, $fruit), $rateType));

This gives you a little more flexibility and will just return 0 if you use a fruit or rate type that isn't there.

从PHP中的多维数组求和项

2 个答案: