Question

我有一个变量$ cart，用于存储产品的详细信息。我想从购物车中获得一个特定的字段。

dd（$ cart）显示以下结果。

Cart {#437 ▼
  +items: array:1 [▼
    "airports_334_64" => array:4 [▼
      "qty" => 1
      "price" => 1600000
      "duration" => 0
      "item" => array:28 [▼
        "id" => 64
        "created_at" => "2017-05-29 10:24:22"
        "updated_at" => "2017-05-29 10:26:51"
        "title" => "Airport ad"
        "price" => "120000"
        "location" => "Airport T3"
        "city" => "Delhi"
        "state" => "Delhi"
        "rank" => "12"
        "landmark" => "abc"
        "description" => "<p>new</p>"
        "image" => "1496053462.jpg"
        "references" => ""
        "status" => "Available"
        "display_options" => null
        "light_option" => null
        "airportnumber" => null
        "discount" => "1"
        "slug" => null
        "reference_mail" => "chingkhei91@gmail.com"
        "airports_id" => "64"
        "area" => "arrival_check_in_hall"
        "displayoption" => "backlit_panel"
        "dimensions" => "7'10"x3'9""
        "optionprice" => "1600000"
        "units" => "8"
        "ad_code" => ""
        "variation_id" => 334
      ]
    ]
  ]
  +totalQty: 1
  +totalPrice: 1600000
}

我想获取reference_mail的值，即Cart-＆gt; items-＆gt; item-＆gt; reference_mail

Answer 1

使用Laravel提供的Collections：

$items = collect($cart->items);
$reference_mails = $items->map(function($item){
    return $item['reference_mail'];
});

这将为您提供所有参考邮件的数组。 map的行为描述为here

Answer 2

如果你想访问它们，那么你应该迭代这样的项目。

foreach ($cart->items as $items) {
    foreach ($items as $item) {
        $email = $item['item']['reference_mail'];
    }
}

如果您需要根据数组索引直接访问它，那么您可以这样做。

$email = $cart->items['airports_334_64']['item']['reference_mail'];

如果您需要reference_mail列表，那么您可以在查询中执行此操作，而不是完成所有这些操作。如果您有一个集合，那么您可以使用pluck方法来检索电子邮件列表。

如何从laravel中的多维数组中获取特定的字段值

2 个答案: