PHP 将两个数组相互合并，使用索引数组作为参考 - 两个数组作为输出

Question

我正在尝试获取两个数组，并将它们相互合并。第一个数组用作"索引"数组，即 - 这是输出数组理想的格式：

$array1 = [
    'DIV1' => 'Some element data',
    'SUPPLEMENTAL' => [
        'RPC' => '10.24.122.32',
        'PORT' => '8080'
    ],
    'ASG' =>  'some arbitrary data'
];
$array2 = [
    'DIV2' => 'Some more element data',
    'ASG'  => 'different arbitrary data',
    'DIV1' => 'Some element data that refers to the other object'
    'SUPPLEMENTAL' => [
         'RPC' => '10.24.123.1'
    ]
];

因此，在合并之后，我们将有效地拥有两个数组。这可以作为调用两次的单个函数来完成，该函数将每个数组作为参数传递(第二次调用时反向 - 并以某种方式定义索引数组(。键将仅沿用，没有值。我们最终会得到如下所示的数组：

$array1 = [
    'DIV1' => 'Some element data', 
    'DIV2' => '',                       // blank because only key was moved
    'SUPPLEMENTAL' => [
        'RPC' => '10.24.122.32',
        'PORT' => '8080'
    ],
    'ASG' =>  'some arbitrary data'
];
$array2 = [
    'DIV1' => 'Some element data that refers to the other object'
    'DIV2' => 'Some more element data',
    'SUPPLEMENTAL' => [
         'RPC' => '10.24.123.1',
         'PORT' => ''                   // blank because only key was moved
    ],
    'ASG'  => 'different arbitrary data'
];

导入的(空白(键按某种顺序放置并不是非常重要，但保留现有元素的顺序很重要。只要它遵守索引数组的顺序定义(在本例中为 array1(。

我想我需要对多个维度进行某种嵌套排序。

Answer 1

由于您的数据没有相同顺序的键，因此很难保持键顺序，但您可以使用递归函数实现所需的目标：

function recursiveReKeyArrays(array $array1, array $array2)
{
    // Loop through the array for recursion
    foreach ($array2 as $key => $value) {
        if (!is_array($value)) {
            continue;
        }
        $array1[$key] = recursiveReKeyArrays($array1[$key], $value);
    }
    // Find the differences in the keys
    foreach (array_diff_key($array2, $array1) as $key => $value) {
        $array1[$key] = null;
    }
    return $array1;
}

这将遍历第二个数组，找到任何数组值并递归到它们中，找到任何丢失的键并将它们设置为 null 。

这将为您提供以下输出：

Array
(
    [DIV1] => Some element data
    [SUPPLEMENTAL] => Array
        (
            [RPC] => 10.24.122.32
            [PORT] => 8080
        )
    [ASG] => some arbitrary data
    [DIV2] => 
)
Array
(
    [DIV2] => Some more element data
    [ASG] => different arbitrary data
    [DIV1] => Some element data that refers to the other object
    [SUPPLEMENTAL] => Array
        (
            [RPC] => 10.24.123.1
            [PORT] => 
        )
)

此处的示例：http://ideone.com/5ml1y4