php - 递归添加元素到数组

Question

我需要合并这两个数组($array1 中的$array2):

$array1 = array(
    'data' => array(
        array(
            'raw' => array(
                'key1' => array('value1', 'value1_1'),
                'key3' => 'value3',
            ),
        ),
        array(
            'raw' => array(
                'key1' => array('value10', 'value10_1'),
                'key3' => 'value30',
            ),
        ),
        ...
    ),
);

$array2 = array(
    'data' => array(
       array(
           'raw' => array(
               'key1' => 'value1_2',
               'key2' => 'value2',
           )
       )
    )
);

预期结果:

array(
    'data' => array(
        array(
            'raw' => array(
                'key1' => array('value1', 'value1_1', 'value1_2'),
                'key2' => 'value2',
                'key3' => 'value3',
            ),
        ),
        array(
            'raw' => array(
                'key1' => array('value10', 'value10_1'),
                'key3' => 'value30',
            ),
        ),
    ),
);

当我使用 array_merge_recursive 时将 $array2 合并到 $array1['data'][0] 中，我得到了以下结果:

$array1 = array(
    'data' => array(
        array(
            'raw' => array(
                'key1' => array('value1', 'value1_1'),
                'key3' => 'value3',
            ),
        ),
        array(
            'raw' => array(
                'key1' => array('value10', 'value10_1'),
                'key3' => 'value30',
            ),
        ),
        array(
           'raw' => array(
               'key1' => 'value1_2',
               'key2' => 'value2',
           )
       )
    ),
);

当我使用 array_replace_recursive 时，我得到了以下结果:

$array1 = array(
    'data' => array(
        array(
            'raw' => array(
                'key1' => 'value1_2',
                'key2' => 'value2',
                'key3' => 'value3',
            ),
        ),
        array(
            'raw' => array(
                'key1' => array('value10', 'value10_1'),
                'key3' => 'value30',
            ),
        ),
    ),
);

我正在寻找获得预期结果的最简单方法。 数组可以有一个未知的 deph 数据结构，它可以有一个以上的索引子数组。看来我需要 array_merge_recursive 和 array_replace_recursive

之间的组合

非常感谢您的回答:)

Answer 1

首先需要做一些准备，以清除不需要的索引子数组。

代码:(Demo)

$array1['data']=current($array1['data']); // repair
$array2['data']=current($array2['data']); // repair
var_export(array_merge_recursive($array1, $array2));  // merge as intended

输出:

array (
  'data' => 
  array (
    'raw' => 
    array (
      'key1' => 
      array (
        0 => 'value1',
        1 => 'value1_1',
        2 => 'value1_2',
      ),
      'key3' => 'value3',
      'key2' => 'value2',
    ),
  ),
)

问题更新后表达更复杂的数据结构...

代码:(Demo)

foreach ($array1['data'] as $set) {
    foreach ($set['raw'] as $k => $v) {
        if (!isset($result['data']['raw'][$k])) {
            $result['data']['raw'][$k] = $v;
        }else {
            $result['data']['raw'][$k] = array_merge((array)$result['data']['raw'][$k],(array)$v);
        }
    }
}
foreach ($array2['data'] as $set) {
    foreach ($set['raw'] as $k => $v) {
        if (!isset($result['data']['raw'][$k])) {
            $result['data']['raw'][$k] = $v;
        }else{
            $result['data']['raw'][$k] = array_merge((array)$result['data']['raw'][$k],(array)$v);
        }
    }
}
var_export($result);