Get email from Facebook User - php

Question

I am trying to access the user's email address using Facebook php SDK v 3.2.3
The code:
<?php
require_once('facebook-php-sdk/src/facebook.php');
// Create our Application instance (replace this with your appId and secret).
$facebook= new Facebook(array(
'appId' => 'xxxxxxx',
'secret' => 'xxxxxxxxxxxxxxx',
'allowSignedRequest' => false,
));
$_REQUEST += $_GET;
$user = $facebook->getUser();
if ($user) {
try {
$login_url = $facebook->getLoginUrl(array(
'req_perms' => 'email'
));
echo 'Please login.';
$user_profile = $facebook->api('/me?fields=picture.width(100).height(100),first_name,last_name,username,email');
echo $user_profile['email'];
echo $user_profile['username'];
} catch (FacebookApiException $e) {
$user = null;
}
} else {
die('<script>top.location.href="'.$facebook->getLoginUrl().'";</script>');
}
?>
I tried the above but it didn't work. I tried getting the extending permissions via the login but no luck, not sure if I did this right.
I get the error "Undefined index: email".
How do I fix this?

Answer 1

To specify the permissions required, you need to pass them in the array passed to the getLoginUrl function with a key called scope.
$login_url = $facebook->getLoginUrl(array(
'scope' => 'email'
));