array(
      'fname' => 'Mark',
      'lname' => 'Caguioa',
      'teams' => array(
           'team' => 'Ginebra',
           'team' => 'Hotshots'
      )
)

$stmt = $this->sql->prepare("
        SELECT
        usr.fname,
        usr.lname,
        (
            SELECT
            team.name
            FROM users usr
            LEFT JOIN teams team
            ON usr.gen_id = team.gen_id
        ) AS to 'teams'
        FROM users usr
    ");
$stmt->execute(array(':gen_id' => 'generated_id'));
return $stmt->fetchAll(PDO::FETCH_ASSOC);