Question

我想转换这个多维数组：

array(
[0] => array (
   "interest_income-bank" => "520.541"
   "total_interest_expense" => "145.791"
   "net_interest_income" => "434.937"
   "loan_loss_provision" => "135.664"
   .
   .
)
[1] => array (
   "interest_income-bank" => "617.894"
   "total_interest_expense" => "205.508"
   "net_interest_income" => "506.510"
   "loan_loss_provision" => "120.586"
   .
   .    
)
)

到这样的数组：

array(
[interest_income-bank] => array (
   "0" => "520.541"
   "1" => "617.894"
   .
   .
)
[total_interest_expense] => array (
   "1" => "145.791"
   "2" => "205.508"
   .
   .
)
)

在没有运气的情况下尝试了很多:(

非常感谢任何帮助！

Answer 1

迭代外部数组，然后迭代内部数组。将每个值添加到结果中的索引数组中。

foreach ($your_array as $sub_array) {
    foreach ($sub_array as $key => $value) {
        $result[$key][] = $value;
    }
}

Answer 2

您实际上不必迭代整个数组，您只需迭代一个子数组并使用array_column来获取完整数组中的所有值。

Foreach($arr[0] as $key => $val){
    $res[$key] = array_column($arr, $key);
}

请在此处查看：https://3v4l.org/SAZJd

如果数组大于你在这里显示的数字（你的点表示我认为）这种方法比循环数组的每个单元要快得多。

PHP - 按键/值拆分多维数组

2 个答案: