Unable to get user email using facebook sdk

[pandu13]

I am trying the following code

$loginUrl = $facebook->getLoginUrl(
    array(
 
        'scope' => 'email'        
    )
);
$access_token = $facebook->getAccessToken();
 
$loggedUser = $facebook->api('/me?access_token='.$access_token);
 
var_dump($loggedUser);
 
echo $loggedUser['email'];
 
 

now the var_dump displays everything of user data but not email.

second echo say undefined index email

thanks

[buy domain]

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