请求对话框-如何获得发送者id

Question

我发送一个邀请，下面的代码是用来给你的请求id。我是发件人A，我向b发送邀请，我可以获得request_id，但如何获得UID。

 //get the request ids from the query parameter
 $request_ids = explode(',', $_REQUEST['request_ids']);
 //build the full_request_id from request_id and user_id 
  function build_full_request_id($request_id, $user_id) {
  return $request_id . '_' . $user_id; 
 }
 //for each request_id, build the full_request_id and delete request  
 foreach ($request_ids as $request_id)
 {
 echo ("reqeust_id=".$request_id."<br>");
 $full_request_id = build_full_request_id($request_id, $user_id);  
 echo ("full_request_id=".$full_request_id."<br>");
try {
 $delete_success = $facebook->api("/$full_request_id",'DELETE');
 if ($delete_success) {
    echo "Successfully deleted " . $full_request_id;}
 else {
   echo "Delete failed".$full_request_id;}
}          
catch (FacebookApiException $e) {
echo "error";}
}

Answer 1

很晚了，但我感谢你的回答…如何发送Facebook应用程序请求以检索接受的数据?

if(isset($_GET['request_ids']))
{
    $request_ids = $_GET['request_ids'];
    $request_ids = explode(",", $request_ids);
    for( $i=0; $i < count($request_ids); $i++ )
    {
        $request_object = $facebook->api($request_ids[$i]);
        if(isset($request_object['data'])){
            $req_data = $request_object['data'];
            $i = 50 + count($request_ids);
        }
    }
}

FB.ui({method: 'apprequests',
       redirect_uri: 'url',
       message: ' your message',
       data : '<?=$user_id?>'
    }, requestCallback);

其中$req_data为发送方用户id。

Answer 2

设置为:$user_id_A = $facebook->getUser();

下面是关于getUser()方法的一些信息:https://developers.facebook.com/docs/reference/php/facebook-getUser/