Facebook應用程序：存儲用戶信息的問題

Question

我想將姓名和代理電子郵件等基本用戶信息存儲到我的MySQL數據庫中。 這裏是我的代碼

$facebook = new Facebook($appapikey, $appsecret); 
$user = $facebook->require_login($required_permissions = 'publish_stream','status_update','email'); 

$con = mysql_connect("xxxx","xxxxx","xxxxx"); 
if (!$con) 
    { 
    die('Could not connect: ' . mysql_error()); 
    } 

mysql_select_db("xxx_userdb", $con); 
//Uptil Here it is working fine...No problem with db connection 

$fql_firstname = "select first_name from user where uid = '$user'"; 
$fql_lastname = "select last_name from user where uid = '$user'"; 
$fql_email = "select proxied_email from user where uid = '$user'"; 


$fql_fname_result = $facebook->api_client->fql_query($fql_firstname); 
$fql_lname_result = $facebook->api_client->fql_query($fql_lastname); 
$fql_email_result = $facebook->api_client->fql_query($fql_email); 

echo "<pre>FQL Result:" . print_r($fql_fname_result,true) . "</pre>"; 
echo "<pre>FQL Result:" . print_r($fql_lname_result,true) . "</pre>"; 
echo "<pre>FQL Result:" . print_r($fql_email_result,true) . "</pre>"; 

這裏的輸出我得到

FQL Result: 

FQL Result: 

FQL Result: 

我在做什麼錯？

Answer 1

從我的調查，這裏是我認爲可能是你的問題。

在Facebook的API uid是int和不一個字符串，因此您的FQL應指定爲int的UID（但你應用它作爲一個字符串）。

變化

$fql_firstname = "select first_name from user where uid = '$user'"; 
$fql_lastname = "select last_name from user where uid = '$user'"; 
$fql_email = "select proxied_email from user where uid = '$user'"; 

要

$fql_firstname = "select first_name from user where uid = $user"; 
$fql_lastname = "select last_name from user where uid = $user"; 
$fql_email = "select proxied_email from user where uid = $user"; 

我希望$user返回uid。

---

觀察更新

此外，調用fql_query返回數據的數組，所以（以防萬一）你爲什麼不嘗試（真的不知道，如果我在PHP正確）

echo "<pre>FQL Result:" . print_r($fql_fname_result[0],true) . "</pre>"; 
echo "<pre>FQL Result:" . print_r($fql_lname_result[0],true) . "</pre>"; 
echo "<pre>FQL Result:" . print_r($fql_email_result[0],true) . "</pre>";