Question

我正在尝试映射查询以向查询添加一些自定义键值。如果有相同的ID，则将其标记为一批。

例如我的查询（集合）如下：

[
{
ID: "5835910",
TrackingNr: "06215068123019",
TrackingURL: "http://exmaple-website?trackingnr=06215068123019"
},
{
ID: "5835910",
TrackingNr: "06215068123020",
TrackingURL: "http://exmaple-website?trackingnr=06215068123020"
},
{
ID: "5860771",
TrackingNr: "06215068129534",
TrackingURL: "http://exmaple-website?trackingnr=06215068129534"
},
{
ID: "5860771",
TrackingNr: "06215068129535",
TrackingURL: "http://exmaple-website?trackingnr=06215068129535"
},
....
]

我的结果应该是这样的：

[
{
    Shipment: 1
    ID: "5835910",
    TrackingNr: "06215068123019",
    TrackingURL: "http://exmaple-website?trackingnr=06215068123019"
    },
    {
    Shimpent: 1
    ID: "5835910",
    TrackingNr: "06215068123020",
    TrackingURL: "http://exmaple-website?trackingnr=06215068123020"
    },
    {
    Shimpent: 2
    ID: "5860771",
    TrackingNr: "06215068129534",
    TrackingURL: "http://exmaple-website?trackingnr=06215068129534"
    },
    {
    Shipment: 2
    ID: "5860771",
    TrackingNr: "06215068129535",
    TrackingURL: "http://exmaple-website?trackingnr=06215068129535"
    },
    ....
]

我尝试将我的查询广告的运货键映射到数组，并为该值设置一个计数器。但它没有按我预期的那样工作。我的计数器不正确计数。

 $counter = 1;                          

        $tracking = $tracking->map(function($item, $key) use ($tracking, $counter) {

            if(isset($tracking[$key + 1])) {
                if($item->BelID != $tracking[$key + 1]->BelID) {
                    $counter = $counter + 1;

                }
            }

            return [
                'Shipment' => $counter, 
                'ID' => $item->BelID,
                'TrackingNr' => $item->TrackingNr,
                'TrackingURL' => $item->TrackingURL
            ];

        });
        return $tracking;

Answer 1

您必须允许匿名函数中的变量通过在&之前添加$来进行更改：

use ($tracking, &$counter)

无法在匿名PHP函数中编辑use变量

1 个答案: