PHP的stdClass對象數組循環

我想弄清楚如何通過這個stdClass對象循環。我正在嘗試獲取路徑的每個內容數組項[0] - [？]的值。PHP的stdClass對象數組循環

對象數組是這樣的：

stdClass Object 
(
    [hash] => zzzzzzzzzzzzzzzzzzzzzzzzzzzz 
    [revision] => 22 
    [rev] => 161f5f4043 
    [thumb_exists] => 
    [bytes] => 0 
    [modified] => Sun, 23 Mar 2014 18:05:38 +0000 
    [path] => /Camera Uploads 
    [is_dir] => 1 
    [icon] => folder_photos 
    [root] => dropbox 
    [contents] => Array 
    (
     [0] => stdClass Object 
      (
       [revision] => 47 
       [rev] => 2f1f5f4043 
       [thumb_exists] => 1 
       [bytes] => 3212196 
       [modified] => Sun, 23 Mar 2014 18:07:05 +0000 
       [client_mtime] => Wed, 05 Feb 2014 19:10:14 +0000 
       [path] => /Camera Uploads/2014-02-05 14.10.13.jpg 
       [is_dir] => 
       [icon] => page_white_picture 
       [root] => dropbox 
       [mime_type] => image/jpeg 
       [size] => 3.1 MB 
      ) 

     [1] => stdClass Object 
      (
       etc etc...

目前我想下面的代碼迴路：

line 75: print_r ($dropbox->GetMetadata($file->path)); 

line 77: foreach ($dropbox->GetMetadata($file->path) as $arr) { 
line 78: foreach ($arr as $obj) { 
line 79:  $path = $obj->path; 
line 80:  echo $path; 
line 81: } 
line 82: }

，但我不斷收到此錯誤：

(!) Warning: Invalid argument supplied for foreach() in 
       C:\wamp\www\test\sample.php on line 78 

Call Stack 

# Time  Memory  Function  Location 
1 0.0011  157592  {main}()  ..\sample.php:0

來源

2014-03-30 StealthRT

只要刪除內部的foreach循環'var_dump（$ arr）;'你就會看到。順便說一句，'$ arr'是一個誤導性的變量名稱。當你迭代對象的屬性時，它應該是'$ property' – hek2mgl

@ hek2mgl然後我得到一個錯誤**注意：試圖獲取C：\ wamp \ www \ test \ sample.php中非對象的屬性第78行** – StealthRT

再想一想，再試一次，你會看到。一旦你開悟了，你會發現沒有什麼可說的 – hek2mgl

嘗試如下：

foreach($dropbox->GetMetadata($file->path) as $result){ //Process each value as $result 
if(is_array($result)){  //If $result is an array continue ('contents') 
foreach($result as $value){ //Process each value from $result (0..x) 
echo"{$value->path}\n"; //Echo what you are looking for ('contents'>'0'>'path') 
}}}

來源

2014-03-30 01:45:38 JBES

抱歉，但沒有奏效。 – StealthRT

好的，'echo'並不把'$ value'當作一個對象。現在試試？ – JBES

的問題是，foreach想要接收數組或對象，由

Warning: Invalid argument supplied for foreach() in C:\wamp\www\test\sample.php on line 78

做線77在foreach時，你給它一個整體的Dropbox對象表示。那麼在第78行中，您對該通用對象屬性做了一個foreach，但通用對象的第一個鍵（hash）不是數組，因此會出現錯誤。只是給第一個foreach的正確內容：

$object = $dropbox->GetMetadata($file->path); 
foreach ($object->contents as $arr) { 
    foreach ($arr as $obj) { 
    $path = $obj->path; 
    echo $path; 
    } 
}

來源

2015-01-08 18:49:39

PHP的stdClass對象數組循環

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