Question

*在确定下划线问题后编辑了我的问题非常感谢帮助诊断问题的choz *

*说明* 我有一个有两个成员的班级，相应地保存专辑数据和照片数据。在构造函数中，我使用从DB查询中提取的数据填充它们。这些查询返回一个Object，该数组是Object的受保护成员。

我试图在Object中添加一个新的键和值，并将一个关联数组错误地视为一个数组。这些新的关键和价值没有设定。大概是因为Object的数组成员受到保护。请参阅下面的var dump，其中Object转储的开头位置为： [＆＃34;数据＆＃34;：保护]。这是问题吗？如果是这样，创建我自己可以自由操作的副本的最佳方法是什么？

/****** Class  Memebers ********/ 
//Object with array of associative album arrays.
//Each inner album array is defined by unique key ='albumID'.
private $member_albums; 


//array of objects holding associative photo arrays.
//Each inner photo array is defined by unique key ='albumID'.
private $member_photos;

这是用于添加键和值的方法 -

/*
* For each photo in each album, we will add a new key and value.  
* key = 'img_url', value is an array with structure of 
* ['S']['{url pointing to this photo in storage}'] where 'S' is the 
* key (representing a string value) and value is the url string.  
*/
private function add_Photo_Url_To_Photos_Data_Array(){

  // If data was retrieved from DB without errors
  // because query fail returns false.
  if( $this->member_albums && $this->member_photos){

    // If user has albums - because 'Count' is always 0 or
    // greater, representing the number of inner arrays
    if($this->member_albums['Count'] > 0 ){ 

        // For number of albums
        foreach ($this->member_albums['Items'] as $albumArr) {

            // Current album ID 
            $curr_AlbumId = $albumArr['albumID']['S'];                  

            // If current album contains photos
            if( $this->member_photos[$curr_AlbumId]['Count'] > 0){                                              

                // For each photo in this album
                foreach( $this->member_photos[$curr_AlbumId]['Items'] as &$photosArr) {

                    // method that creates a url from photo data- returns string url                                                                                    
                    $url = $this->build_Photo_Url($photosArr, $curr_AlbumId);                                                       

                    // Insert new key = 'img_url' and value into the array.                                                                                 
                    // new value is itself an array with key ['S']  
                    // signifying a string and value $url   
                    $photosArr['img_url'] = array('S' =>
                    $url);

                    // this echo shows key and value were added
                    // correctly into $photosArr
                    echo ' <br>Img URL = ' . $photosArr['img_url']['S'];                                                            
                }                   
            }                                   
        }
    }
}

但如果我试着回应“img_url＆＃39;从$ this-＆gt; member_photos数组项目，它不存在。

感谢。

***编辑3 **** 添加var_dump（$ this-＆gt; member_albums）和var_dump（$ this-＆gt; member_photos）

的var_dump（$这 - ＆GT; member_albums）

object(Guzzle\Service\Resource\Model)#88 (2) { 
["structure":protected]=> NULL ["data":protected]=> array(3) { 
    ["Count"]=> int(2) 
    ["Items"]=> array(2) { 
        [0]=> array(7) { 
            ["PlaceLong"]=> array(1) { ["N"]=> string(1) "0" } 
            ["AlbumId"]=> array(1) { ["S"]=> string(7) "album_1" } 
            ["Title"]=> array(1) { ["S"]=> string(5) "Test1" } 
            ["UserId"]=> array(1) { ["S"]=> string(36) "810725E5-D235-43F7-AA50-4CCDACD6AB36" } 
            ["Year"]=> array(1) { ["N"]=> string(1) "0" } 
            ["PlaceLat"]=> array(1) { ["N"]=> string(1) "0" } 
            ["Timestamp"]=> array(1) { ["N"]=> string(16) "472572846.470462" } 
        }

的var_dump（$这 - ＆GT; member_photos）

array(2) { 
["album_1"]=> object(Guzzle\Service\Resource\Model)#89 (2) { 
["structure":protected]=> NULL ["data":protected]=> array(3) { 
    ["Count"]=> int(5) 
    ["Items"]=> array(5) { 
        [0]=> array(8) { 
            ["ShotId"]=> array(1) { ["S"]=> string(6) "Photo2" } 
            ["AlbumId"]=> array(1) { ["S"]=> string(7) "album_1" } 
            ["UserId"]=> array(1) { ["S"]=> string(16) "1111-11111-11111" } 
            ["Year"]=> array(1) { ["N"]=> string(1) "0" } 
            ["Discovery"]=> array(1) { ["N"]=> string(1) "0" } 
            ["Timpstamp"]=> array(1) { ["N"]=> string(14) "472572840.3845" } 
            ["ExtractedPhotoId"]=> array(1) { ["S"]=> string(32) "Photo2_0-0-746-0-0-1000-746-1000" } 
            ["ManualEdit"]=> array(1) { ["N"]=> string(1) "0" } 
        }

Answer 1

Jay，在阅读了所有评论并对您正在使用的Model进行基本搜索后，您的对象支持toArray()函数，该函数将以数组格式返回数据，而不包含protected成员

以下是参考：http://docs.aws.amazon.com/aws-sdk-php/v2/guide/feature-models.html

首先，尝试运行var_dump(get_class_methods($this->member_albums)));以查看它将返回哪种方法。我确信有一个内置的toArray()函数，主要是因为它是一个响应，所以它们可以让你轻松提取和操作你的数据。

首先尝试var_dump()，然后尝试执行以下$clearArr = $this->member_albums->toArray();和print_r / var_dump $clearArr，它应该生成标准的多维数组。

将对象的受保护成员数据复制到数组

1 个答案: