php - 如何在 PHP 中访问嵌套标准对象数组中的数据

Question

我需要访问数据:“hotelID”、“name”、“address1”、“city”等。我在 PHP 中有以下 Std 对象数组 ($the_obj)，其中包含以下数据:

object(stdClass)[1]
  public 'HotelListResponse' => 
    object(stdClass)[2]
      public 'customerSessionId' => string '0ABAAA87-6BDD-6F91-4292-7F90AF49146E' (length=36)
      public 'numberOfRoomsRequested' => int 0
      public 'moreResultsAvailable' => boolean false
      public 'HotelList' => 
        object(stdClass)[3]
          public '@size' => string '227' (length=3)
          public '@activePropertyCount' => string '227' (length=3)
          public 'HotelSummary' => 
            array (size=227)
             0 =>
              object(stdClass)[4]
              public 'hotelId' => 112304 
              public 'name' => La Quinta Inn and Suites Seattle Downtown 
              public 'address1' => 2224 8th Ave 
              public 'city' => Seattle 
              public 'stateProvinceCode' => WA 
              public 'postalCode' => 98121 
              public 'countryCode' => US 
              public 'airportCode' => SEA 
              public 'propertyCategory' => 1 
              public 'hotelRating' => 2.5

我已经尝试了以下方法来访问“名称”:

echo $the_obj->HotelListResponse->HotelList->HotelSummary[0]->name;

我还尝试使用 foreach 循环打印每个键和值对，但我不断收到错误。这是我尝试过的:

foreach ($the_obj->HotelListResponse->HotelList->HotelSummary[0] as $key => $value){
    echo $key.' : '.$value.'<br />';
}

这是我得到的错误:

• 尝试获取非对象的属性
• 警告:为 foreach() 提供的参数无效

Answer 1

谢谢大家的回答，我已经找到了访问数组最深处的'hotelID'，'name'和所有其他键值对的方法。

我将标准对象数组转换为关联数组，然后使用 foreach 循环访问每个值:

foreach ($the_obj["HotelListResponse"]["HotelList"]["HotelSummary"] as $value){
echo $value["hotelId"];
echo $value["name"];

//and all other values can be accessed
}

同时访问(键和值):

foreach ($the_obj["HotelListResponse"]["HotelList"]["HotelSummary"] as $key=>$value){
    echo $key.'=>'.$value["hotelId"];
    echo $key.'=>'.$value["name"];

    //and all other keys as well as values can be accessed
    }