public function is_watchable_user($user, $userID)
{
$userID = MySQL::SQLValue($user['userID'], MySQL::SQLVALUE_NUMBER);
$watchableUsers = $this->get_watchable_users($user);
foreach ($watchableUsers as $watchableUser) {
if ($watchableUser['userID'] == $userID) {
return true;
}
}
return false;
}