Using the example docs, I was able to get a query like this to work.
SELECT f.foo, b.bar FROM Foo f LEFT JOIN Bar b WHERE f.foo = 20 AND b.bar IN ? Using DBAL, this code returns results.
$result = $this->connection->executeQuery( $SQL, array($bar_array), array(\Doctrine\DBAL\Connection::PARAM_INT_ARRAY) )->fetchAll(); I would like to search for f.foo as a single integer parameter well as looking for the IN statement, but I haven't figured out how to get it to function, since all of the example documents have the array as the only parameter.