public static function addNewUser($username, $firstName, $lastName, $email, $password) { $selector = new DBSelect('localhost', 'root', '', 'mydb'); $result = $selector->hasUserUsername($username); if ($result) { $selector = null; return false; } else { $selector = null; $insertor = new DBInsert('localhost', 'root', '', 'mydb'); $insertor->insertNewUser($username, $firstName, $lastName, $email, $password); $insertor = null; return true; } }