如何在不引發PHP通知/警告的情況下循環訪問stdObject的數組？

Question

我有以下stdObject通捲曲獲得/ json_decode（）：

stdClass Object 
(
    [response] => stdClass Object 
     (
      [status] => OK 
      [num_elements] => 1030 
      [start_element] => 0 
      [results] => stdClass Object 
       (
        [publisher] => stdClass Object 
         (
          [num_elements] => 1030 
          [results] => Array 
           (
            [0] => stdClass Object 
             (
              [id] => 1234 
              [weight] => 4444 
              [name] => Pub 1 
              [member_id] => 1 
              [state] => active 
              [code] => 
             ) 

            [1] => stdClass Object 
             (
              [id] => 1235 
              [weight] => 4444 
              [name] => Pub 2 
              [member_id] => 2 
              [state] => active 
              [code] => 
             ) 

           ) 

         ) 

       ) 

      [dbg_info] => stdClass Object 
       (
        [instance] => instance1.server.com 
        [slave_hit] => 1 
        [db] => db1.server.com 
        [reads] => 3 
        [read_limit] => 100 
        [read_limit_seconds] => 60 
        [writes] => 0 
        [write_limit] => 60 
        [write_limit_seconds] => 60 
        [awesomesauce_cache_used] => 
        [count_cache_used] => 
        [warnings] => Array 
         (
         ) 

        [time] => 70.440053939819 
        [start_microtime] => 1380833763.4083 
        [version] => 1.14 
        [slave_lag] => 0 
        [member_last_modified_age] => 2083072 
       ) 

     ) 

) 

我通過它循環，以獲得每一個結果的ID：

foreach ($result->response->results->publisher->results as $object) { 
    $publishers .= $object->id.","; 
} 

而雖然代碼工作正常，PHP上升以下事項/警告：

PHP的通知：試圖讓非對象的財產/var/www/vhosts/domain.net/script.php 1號線 PHP注意：試圖在/var/www/vhosts/domain.net/script.php中獲取非對象的屬性，第1行 PHP警告：在/ var/www/vhosts/domain中爲foreach（）提供了無效參數.net/script.php上線1

任何想法？提前致謝！

Answer 1

是否有可能將json_decode（）中的第二個參數$assoc設置爲true？就像這樣：

$result = json_decode($json_from_curl, true); 

因此，取回$與轉換爲關聯數組所有stdClass的對象產生。

編輯： 如果你得到的$result確實是一個關聯數組，那麼我們應該這樣對待它。嘗試更換您的foreach本：

foreach ($result['response']['results']['publisher']['results'] as $arr) { 
    $publishers .= $arr['id'] . ","; 
} 

EDIT2： 基於你的代碼我自己的測試，一切都應該正常工作。通知/警告不應該發生。也許在你的問題中沒有顯示的其他代碼正在導致它。