Question

我是PHP的新手，我在我的项目中发现了这个问题。我有这个数组：

Array
(

 [0] => Array
    (
        [count] => 1
        [account] => 14
        [amt] => 1000
    )

[1] => Array
    (
        [count] => 1
        [account] => 11
        [amt] => 124
    )

[2] => Array
    (
        [count] => 1
        [account] => 12
        [amt] => 2345
    )

[3] => Array
    (
        [count] => 1
        [account] => 14
        [amt] => 2345
    )

)

我希望将其转换为此格式

Array
(
[14] => Array
    (
        [0] => Array
            (
                [amt] => 1000
                [count] => 1
                [volume] => 1000
            )
        [1] => Array
            (
                [amt] => 124
                [count] => 0
                [volume] => 0
            )

        [2] => Array
            (
                [amt] => 2345
                [count] => 1
                [volume] => 2345
            )

    )

[11] => Array
    (
        [0] => Array
            (
                [amt] => 1000
                [count] => 0
                [volume] => 0
            )
        [1] => Array
            (
                [amt] => 124
                [count] => 1
                [volume] => 124
            )
        [2] => Array
            (
                [amt] => 2345
                [count] => 0
                [volume] => 0
            )

    )

[12] => Array
    (
        [0] => Array
            (
                [amt] => 1000
                [count] => 0
                [volume] => 0
            )
        [1] => Array
            (
                [amt] => 124
                [count] => 0
                [volume] => 0
            )
        [2] => Array
            (
                [amt] => 2345
                [count] => 1
                [volume] => 2345
            )

    )

 )

您可能会注意到account键成为新数组的键，值内的数组包含第一个数组上的所有数组。请帮忙。它就像一个硬核阵列，我真的需要它用于我的项目。谢谢！

Answer 1

试试这个：

$newArray = array();
foreach ($origArray as $val)
{
   $val['volume'] = $val['count'] * $val['amt'];
   $account = $val['account'];
   unset($val['account']);  
   $newArray[$account][]=$val;
}

修改

好吧我想也许这就在你想要的地方附近，虽然我不明白为什么每个帐户有3个结果，当有4个开始时。

$newArray = array(); $accounts = array(); foreach ($origArray as $val) { $accounts[$val['account']] = $val['account']; } foreach ($accounts as $account) { foreach ($origArray as $val) { $val['count'] = $account == $val['account'] ? $val['count'] : 0; $val['volume'] = $val['count'] * $val['amt']; unset($val['account']); $newArray[$account][] = $val; } }

Answer 2

<?php
$final_array = array();
$dataset = YOUR FIRST ARRAY;

foreach($dataset as $data)
{
    $account = $data['account'];
    unset($data['account'])
    $final_array[$account][] = $data;
}

这应该做你需要的。虽然我不知道你的第二个数组中的音量来自何处

合并具有相同值的数组，并将另一个数组显示为值

2 个答案: