Php 如果数组值在另一个数组中重复，请合并两个数组

我有几个数组，我想检查一个重复的值，如果发现该值在另一个数组中重复，那么将这两个数组组合在一起

下面我举了一个例子，其中有两个数组具有重复的值

示例：以下两个数组中的

采购订单号

中的值相同。它们不是唯一的值。但是

跟踪\u number

中的值是唯一的

我想检查

purchase\u order\u number

中的值是否在另一个数组中重复。如果在另一个数组中找到相同的值，则将这两个数组合并为一个数组

我试图将

tracking\u number

和

service

中的值合并到一个数组中，而

purchase\u order\u number

中的值在两个或多个数组中相同

下面是示例数组

未合并

    array (
      'data' => 
      array (
        15 => 
        array (
          'type' => 'Tracking',
          'id' => 2830143,
          'attributes' => 
          array (
            'tracking_number' => '1Z5270560360309870',
            'service' => 'UPS',
            'order_id' => 2606218,
            'purchase_order_number' => '7249491',
            'recipient_attempts' => 1,
          ),
        ),
        16 => 
        array (
          'type' => 'Tracking',
          'id' => 2830144,
          'attributes' => 
          array (
            'tracking_number' => '1Z5270560361740866',
            'service' => 'UPS',
            'order_id' => 2606218,
            'purchase_order_number' => '7249491',
            'recipient_attempts' => 1,
          ),
        ),
      ),
    )

    array (
      'data' => 
      array (
        16 => 
        array (
          'type' => 'Tracking',
          'id' => 2830144,
          'attributes' => 
          array (
            'tracking' => 
            array (
              0 => 
              array (
                'tracking_number' => '1Z5270560360309870',
                'service' => 'UPS',
              ),
              1 => 
              array (
                'tracking_number' => '1Z5270560361740866',
                'service' => 'UPS',
              ),
            ),
            'order_id' => 2606218,
            'purchase_order_number' => '7249491',
            'recipient_attempts' => 1,
          ),
        ),
      ),
    )

下面给出了我需要如何组合上述两个阵列的示例

组合

    array (
      'data' => 
      array (
        15 => 
        array (
          'type' => 'Tracking',
          'id' => 2830143,
          'attributes' => 
          array (
            'tracking_number' => '1Z5270560360309870',
            'service' => 'UPS',
            'order_id' => 2606218,
            'purchase_order_number' => '7249491',
            'recipient_attempts' => 1,
          ),
        ),
        16 => 
        array (
          'type' => 'Tracking',
          'id' => 2830144,
          'attributes' => 
          array (
            'tracking_number' => '1Z5270560361740866',
            'service' => 'UPS',
            'order_id' => 2606218,
            'purchase_order_number' => '7249491',
            'recipient_attempts' => 1,
          ),
        ),
      ),
    )

    array (
      'data' => 
      array (
        16 => 
        array (
          'type' => 'Tracking',
          'id' => 2830144,
          'attributes' => 
          array (
            'tracking' => 
            array (
              0 => 
              array (
                'tracking_number' => '1Z5270560360309870',
                'service' => 'UPS',
              ),
              1 => 
              array (
                'tracking_number' => '1Z5270560361740866',
                'service' => 'UPS',
              ),
            ),
            'order_id' => 2606218,
            'purchase_order_number' => '7249491',
            'recipient_attempts' => 1,
          ),
        ),
      ),
    )

下面是一个基于reduce的解决方案，其中有一些注意事项：

$arr['data'] = array_reduce($arr['data'], function ($out, $item) {
    // keys we want to extract
    static $tracking_keys = ['tracking_number' => '', 'service' => ''];
    // yank tracking keys from attributes
    $tracking = array_intersect_key($item['attributes'], $tracking_keys);
    $item['attributes'] = array_diff_key($item['attributes'], $tracking_keys);
    // insert to new array based on order number
    $order_no = $item['attributes']['purchase_order_number'];
    if (!isset($out[$order_no])) {
        $item['attributes']['tracking'] = [$tracking];
        $out[$order_no] = $item;
    } else {
        array_push($out[$order_no]['attributes']['tracking'], $tracking);
    }
    return $out;
}, []);

---

'data'

中的键不保留，并且

'id'

由第一项设置。

不再搜索此项的答案。