WordPress最新版woocommerce结算页面去掉其它表单字段

旧版本可以通过以下代码去掉：

add_filter('woocommerce_checkout_fields', 'ggdoc_woocommerce_checkout_fields', PHP_INT_MAX);

function ggdoc_woocommerce_checkout_fields($woo_checkout_fields_array)
{
//    unset($woo_checkout_fields_array['billing']['billing_first_name']);
    unset($woo_checkout_fields_array['billing']['billing_last_name']);
//    unset($woo_checkout_fields_array['billing']['billing_phone']);
    unset($woo_checkout_fields_array['billing']['billing_email']);
    unset($woo_checkout_fields_array['order']['order_comments']); // remove order notes
    unset($woo_checkout_fields_array['billing']['billing_company']); // remove company field
    unset($woo_checkout_fields_array['billing']['billing_country']);
//    unset( $woo_checkout_fields_array['billing']['billing_address_1'] );
//    unset( $woo_checkout_fields_array['billing']['billing_address_2'] );
    unset($woo_checkout_fields_array['billing']['billing_city']);
    unset($woo_checkout_fields_array['billing']['billing_state']); // remove state field
    unset($woo_checkout_fields_array['billing']['billing_postcode']); // remove zip code field

    return $woo_checkout_fields_array;
}

新版本可以通过以下方法去掉：

// 隐藏字段
add_filter('woocommerce_shared_settings', function ($settings) {
    $settings['defaultFields']['email']['required'] = false;
    $settings['defaultFields']['email']['hidden'] = true;

    $settings['defaultFields']['last_name']['required'] = false;
    $settings['defaultFields']['last_name']['hidden'] = true;

    $settings['defaultFields']['company']['required'] = false;
    $settings['defaultFields']['company']['hidden'] = true;

    $settings['defaultFields']['country']['required'] = false;
    $settings['defaultFields']['country']['hidden'] = true;

    $settings['defaultFields']['city']['required'] = false;
    $settings['defaultFields']['city']['hidden'] = true;

    $settings['defaultFields']['state']['required'] = false;
    $settings['defaultFields']['state']['hidden'] = true;

    $settings['defaultFields']['postcode']['required'] = false;
    $settings['defaultFields']['postcode']['hidden'] = true;
    return $settings;
});
// 如果国家或地区不填写，就需要用这个过滤器
add_filter('woocommerce_customer_get_billing_country', function ($value, $obj) {
    return 'TW';
}, 10, 2);
// 如果国家或地区不填写，就需要用这个过滤器
add_filter('woocommerce_customer_get_shipping_country', function ($value, $obj) {
    return 'TW';
}, 10, 2);