Facebook Graph API $me object does not provide user’s network info. To access FB user’s networks/affiliations information, you need to use FQL like this:
$fql = 'SELECT affiliations, name FROM user WHERE uid = '.$me['id'];
//or use this query for standard_user_info table
//$fql = 'SELECT affiliations, name FROM standard_user_info WHERE uid = '.$me['id'];
$param = array(
'method' => 'fql.query',
'query' => $fql,
'callback' => ''
);
$affiliations = $facebook->api($param);
echo '
'; print_r($affiliations); echo '
‘;
Hope that helps.