如何从WooCommerce结账国家/地区获取字段选项数组？

<?php
$api_url = 'https://your-domain.com/wp-json/wc/v3/data/countries';
$consumer_key = 'your-consumer-key';
$consumer_secret = 'your-consumer-secret';

// 构建请求URL
$request_url = $api_url;

// 创建cURL资源
$ch = curl_init($request_url);

// 设置请求选项
curl_setopt($ch, CURLOPT_HTTPHEADER, array(
    'Content-Type: application/json',
    'Authorization: Basic ' . base64_encode($consumer_key . ':' . $consumer_secret)
));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

// 发送请求并获取响应
$response = curl_exec($ch);

// 关闭cURL资源
curl_close($ch);

// 解析JSON响应
$countries = json_decode($response, true);

// 打印国家/地区字段选项数组
print_r($countries);
?>