state id by state ISO CODE AND COUNTRY ISO CODE

public function getIdStateByPaypalCode($ship_addr_state, $ship_addr_country)
    {
        $id_state = 0;
        $id_country = Country::getByIso($ship_addr_country);
     
        if (Country::containsStates($id_country)) {           
            if ($id_state = (int)State::getIdByIso(Tools::strtoupper($ship_addr_state), $id_country)) {
                $id_state = $id_state;
            } elseif ($id_state = State::getIdByName(pSQL(trim($ship_addr_state)))) {
                $state = new State((int)$id_state);
                if ($state->id_country == $id_country) {
                    $id_state= $state->id;
                }
            }
        }
       
        return $id_state;
    }

getIdStateByPaypalCode('NY','US')