fql get users friends

FQL call to get a users friends.

$user_id=$user_profile['id'];

$query = "SELECT uid2 FROM friend WHERE uid1 = $user_id";

try { 
	$result = $facebook->api(array(
		'method' => 'fql.query',
		'query' => $query,
	));
} catch (FacebookApiException $e) {
	error_log($e);
	$result = 'none';
}