build custom shipping address

build_custom_shipping_address.php

<?php
// $raw_address = Array (
//   [first_name] => YU CHENG
//   [last_name] => WANG
//   [company] =>
//   [address_1] => 新北路
//   [address_2] =>
//   [city] => 板橋區
//   [state] => NEW TAIPEI CITY
//   [postcode] => 100
//   [country] => TW
// )
$country = $order->get_shipping_country(); // country code, ex: TW
$city = $order->get_shipping_city();
$states = WC()->countries->get_states(); // state codes

$state = $order->get_shipping_state(); // shipping state code
$full_state = ( $country && $state && isset($states[$country][$state])) ? $states[$country][$state] : $state;