Zend Framework: How to do a DB select with multiple params?

Question

I'm just wondering what the syntax is to do a db select in Zend Framework where two values are true. Example: I want to find if a user is already a member of a group:

$userId = 1;
$groupId = 2;
$db = Zend_Db_Table::getDefaultAdapter();
$select = new Zend_Db_Select($db);
$select->from('group_members')
    ->where('user_id = ?', $userId); //Right here. What do I do about group_id?
$result = $select->query();
$resultSet = $result->fetchAll();

Answer 1

You can use multiple where clauses which will be ANDed together by default:

$select->from('group_members')
    ->where('user_id = ?', $userId)
    ->where('group_id = ?', $groupId);