无效参数

Question

我使用下面从FB检索评论：

$url = urlencode("http://*****.com/pages/view?id=2153&item=Mens-Collection-Shoes"); 
$request_url ="https://graph.facebook.com/comments/?ids=" . $url; 
$requests = file_get_contents($request_url); 

当我print_r($requests);我得到以下但不知道如何将它与foreach循环格式：

{ 
    "http:\/\/*****.com\/pages\/view?id=2153&item=Mens-Collection-Shoes": { 
     "comments": { 
      "data": [{ 
       "id": "123456", 
        "from": { 
        "name": "Laurelle", 
         "id": "123456" 
       }, 
        "message": "I love these", 
        "can_remove": false, 
        "created_time": "2012-11-20T10:20:16+0000", 
        "like_count": 0, 
        "user_likes": false 
      } { 
       "id": "123456", 
        "from": { 
        "name": "Dan", 
         "id": "123456" 
       }, 
        "message": "I know, just stunning!", 
        "can_remove": false, 
        "created_time": "2012-11-20T14:24:15+0000", 
        "like_count": 0, 
        "user_likes": false 
      }], 
       "paging": { 
       "next": "https:\/\/graph.facebook.com\/*****\/comments?limit=25&offset=25&__after_id=*****" 
      } 
     } 
    } 
} 

我试图让：

data->from->id 
data->from->name 
data->message 
data->created_time 

我已经试过：

$fb_response = json_decode($requests); 

foreach($fb_response->data as $item){ 
echo $item->from->id . '<br />'; 
echo $item->from->name . '<br />'; 
echo $item->message . '<br />'; 
echo $item->created_time . '<br /><br />'; 
} 

，但没有运气

Answer 1

我认为你正在寻找：

$originalUrl = "http://*****.com/pages/view?id=2153&item=Mens-Collection-Shoes"; 
$url = urlencode($originalUrl); 
... 
foreach($fb_response->$originalUrl->comments->data as $item) { 

data没有直接的JSON文件中的属性的名称;这是http://*****.com/pages/view?id=2153&item=Mens-Collection-Shoes和comments下。