php 双重foreach的坑

Question

$cardInfo 的JSON 格式如下 { "code": 1, "msg": "success", "time": 1524036614, "data": { "list": [ { "id": 1000, "user_id": 1, "live_hoster_id": 1, "goods_id": 1, "goods_unit": "个", "goods_num": 1, "goods_price_id": 2, "create_time": 0, "update_time": 0, "is_delete": 0, "delete_time": null, "business_id": 1, "shop": "测试商家1", "goodsInfo": { "id": 1, "name": "测试商品1", "sku": "00000000", "category_id": 0, "business_id": 1, "sale_status": 1, "sort": 0, "price": "0.00", "stock_num": 0, "saled_num": 0, "thumbnail": " ", "create_time": 0, "update_time": 0, "is_delete": 0, "delete_time": null, "priceInfo": { "id": 2, "price": "80.00", "sale_price": "60.00", "host_per": "10.00", "update_time": 0, "is_delete": 0, "delete_time": null } } }, { "id": 1001, "user_id": 1, "live_hoster_id": 1, "goods_id": 2, "goods_unit": "个", "goods_num": 1, "goods_price_id": 1, "create_time": 0, "update_time": 0, "is_delete": 0, "delete_time": null, "business_id": 2, "shop": "测试商家2", "goodsInfo": { "id": 2, "name": "测试商品2", "sku": "00000000", "category_id": 0, "business_id": 2, "sale_status": 1, "sort": 0, "price": "0.00", "stock_num": 0, "saled_num": 0, "thumbnail": " ", "create_time": 0, "update_time": 0, "is_delete": 0, "delete_time": null, "priceInfo": { "id": 1, "price": "100.00", "sale_price": "99.00", "host_per": "20.00", "update_time": 0, "is_delete": 0, "delete_time": null } } }, { "id": 1002, "user_id": 1, "live_hoster_id": 1, "goods_id": 3, "goods_unit": "个", "goods_num": 1, "goods_price_id": 3, "create_time": 0, "update_time": 0, "is_delete": 0, "delete_time": null, "business_id": 2, "shop": "测试商家2", "goodsInfo": { "id": 3, "name": "测试商品3", "sku": "00000000", "category_id": 0, "business_id": 2, "sale_status": 1, "sort": 0, "price": "0.00", "stock_num": 0, "saled_num": 0, "thumbnail": " ", "create_time": 0, "update_time": 0, "is_delete": 0, "delete_time": null, "priceInfo": { "id": 3, "price": "200.00", "sale_price": "180.00", "host_per": "20.00", "update_time": 0, "is_delete": 0, "delete_time": null } } } ] } } 想变换数组结构为 { "code": 1, "msg": "success", "time": 1524036789, "data": { "list": [ { "shop_id": 1, "shop_name": "测试商家1", "goodsInfo":[ {goods1},{goods2} ] }, { "shop_id": 2, "shop_name": "测试商家2", "goodsInfo":[ {goods3},{goods4} ] } ] } } 于是有了如下代码 $cartInfo = collection($cartItems)->toArray(); $shops =array_column($cartInfo,'shopInfo','business_id'); $shop_list = []; $shop_lists = []; foreach ($shops as $key => $shop){ foreach ($cartInfo as $k=>$item){ if($item['business_id'] === $key && $item['shopInfo']['id'] === $key){ $shop_list['shop_id'] = $item['business_id']; $shop_list['shop_name'] = $item['shopInfo']['name']; $shop_list['goodsInfo'][] = $item['goodsInfo']; } } $shop_lists[] = $shop_list; } return $shop_lists; 但是出来的结果却是 { "code": 1, "msg": "success", "time": 1524036931, "data": { "list": [ { "shop_id": 1, "shop_name": "测试商家1", "goodsInfo": [ { "id": 1, "name": "测试商品1", "sku": "00000000", "category_id": 0, "business_id": 1, "sale_status": 1, "sort": 0, "price": "0.00", "stock_num": 0, "saled_num": 0, "thumbnail": " ", "create_time": 0, "update_time": 0, "is_delete": 0, "delete_time": null, "priceInfo": { "id": 2, "price": "80.00", "sale_price": "60.00", "host_per": "10.00", "update_time": 0, "is_delete": 0, "delete_time": null } } ] }, { "shop_id": 2, "shop_name": "测试商家2", "goodsInfo": [ { "id": 1, "name": "测试商品1", "sku": "00000000", "category_id": 0, "business_id": 1, "sale_status": 1, "sort": 0, "price": "0.00", "stock_num": 0, "saled_num": 0, "thumbnail": " ", "create_time": 0, "update_time": 0, "is_delete": 0, "delete_time": null, "priceInfo": { "id": 2, "price": "80.00", "sale_price": "60.00", "host_per": "10.00", "update_time": 0, "is_delete": 0, "delete_time": null } }, { "id": 2, "name": "测试商品2", "sku": "00000000", "category_id": 0, "business_id": 2, "sale_status": 1, "sort": 0, "price": "0.00", "stock_num": 0, "saled_num": 0, "thumbnail": " ", "create_time": 0, "update_time": 0, "is_delete": 0, "delete_time": null, "priceInfo": { "id": 1, "price": "100.00", "sale_price": "99.00", "host_per": "20.00", "update_time": 0, "is_delete": 0, "delete_time": null } }, { "id": 3, "name": "测试商品3", "sku": "00000000", "category_id": 0, "business_id": 2, "sale_status": 1, "sort": 0, "price": "0.00", "stock_num": 0, "saled_num": 0, "thumbnail": " ", "create_time": 0, "update_time": 0, "is_delete": 0, "delete_time": null, "priceInfo": { "id": 3, "price": "200.00", "sale_price": "180.00", "host_per": "20.00", "update_time": 0, "is_delete": 0, "delete_time": null } } ] } ] } } 也就是 在商家2里面 所有商品都进去了。实际上商家1有一个商品 ，商家2有2个商品求问大佬们这是个什么情况？怎么解决？

Answer 1

$shop_lists = [];
foreach($cardInfo['data']['list'] as $v) {
    if (empty($shop_lists[$v['business_id']])) {
        $shop_lists[$v['business_id']]['shop_id'] = $v['business_id'];
        $shop_lists[$v['business_id']]['shop_name'] = $v['goodsInfo']['name'];
    }

    $shop_lists[$v['business_id']]['goodsInfo'][] = $v['goodsInfo'];
}

$cardInfo['data']['list'] = $shop_lists;

应该是你想要的答案

Answer 2

代码还没来得及看就被你的图片吓到了