請幫我猜這混合驗證碼

Question

有人可以幫我猜這個代碼..這只是一個片段，我想我包括了我的問題所需的所有代碼。其實這個代碼來自hybridAuth。我的問題是，最後一行的「user_id」來自哪裏？我想知道，因爲$ _SESSION [「user」]給出了「id」的值。我想再拍$ _SESSION [」「]從數據庫，在那裏我可以把價值電子郵件添加（同一位置的是USER_ID的‘ID’的存在）

// create an instance for Hybridauth with the configuration file path as parameter 
$hybridauth = new Hybrid_Auth($hybridauth_config); 

// try to authenticate the selected $provider 
$adapter = $hybridauth->authenticate($provider); 

// grab the user profile 
$user_profile = $adapter->getUserProfile(); 

// load user and authentication models, we will need them... 
$authentication = $this->loadModel("authentication"); 
$user = $this->loadModel("user"); 

# 1 - check if user already have authenticated using this provider before 
$authentication_info = $authentication->find_by_provider_uid($provider, $user_profile->identifier); 

# 2 - if authentication exists in the database, then we set the user as connected and redirect him to his profile page 
if($authentication_info){ 
// 2.1 - store user_id in session 
$_SESSION["user"] = $authentication_info["user_id"]; 

Answer 1

到$authentication->find_by_provider_uid()調用返回一個關聯陣列，其中一個關鍵是user_id。

看看其他列是由調用返回：

var_dump($authentication_info); 

如果email是數組中的鍵中，你可能會然後將其設置在$_SESSION：

// Store the email into session if it is present in $authentication_info 
// Use whatever the appropriate key you find, be it email, email_address, user_email, whatever... 
$_SESSION['user_email'] = $authentication_info['email'];