vape_shop/app/common/library/express/Usps.php

<?php
// +----------------------------------------------------------------------
// | 萤火商城系统 [ 致力于通过产品和服务，帮助商家高效化开拓市场 ]
// +----------------------------------------------------------------------
// | Copyright (c) 2017~2021 https://www.yiovo.com All rights reserved.
// +----------------------------------------------------------------------
// | Licensed 这不是一个自由软件，不允许对程序代码以任何形式任何目的的再发行
// +----------------------------------------------------------------------
// | Author: 萤火科技 <admin@yiovo.com>
// +----------------------------------------------------------------------
declare (strict_types=1);

namespace app\common\library\express;

use think\facade\Cache;
use cores\traits\ErrorTrait;
use app\common\library\helper;

/**
 * 快递USPS模块
 * Class Usps
 * @package app\common\library\express
 */
class Usps
{
    use ErrorTrait;

    // 物流跟踪查询API地址
    const QUERY_URL = 'http://production.shippingapis.com/ShippingAPI.dll';

    // 查询轨迹账号
    /* @var string $userId */
    private string $userId;

    /**
     * 构造方法
     * @param $userId
     */
    public function __construct($userId)
    {
        $this->userId = $userId;
    }

    /**
     * 执行查询
     * @param string $expressNo
     * @return string|bool
     */
    public function query(string $expressNo)
    {
        // 缓存索引
        $cacheIndex = 'express_usps_'. $expressNo;
        if ($cacheData = Cache::get($cacheIndex)) {
            return $cacheData;
        }
        // 参数设置
        $postDataXML = '<?xml version="1.0" encoding="UTF-8"?><TrackRequest USERID="' . $this->userId . '"><TrackID ID="' . $expressNo . '"></TrackID></TrackRequest>';
        // 请求快递100 api
        $result = $this->curlPost(self::QUERY_URL, $postDataXML);

        if(array_key_exists('HTTP_RAW_POST_DATA', $GLOBALS))
        {
            $post_data = $GLOBALS['HTTP_RAW_POST_DATA'];//php接收xml文件的唯一方式
            $post_obj = SimpleXml_load_String($post_data,'SimpleXMLElement',LIBXML_NOCDATA);//加载xml
            //$username = (string)$post_obj->username;//直接获取xml中username的值
            //todo
        }else{
            return false;
        }

        $express = helper::jsonDecode($result);
        // 记录错误信息
        if (isset($express['returnCode']) || !isset($express['data'])) {
            $this->error = $express['message'] ?? '查询失败';
            return false;
        }
        // 记录缓存, 时效30分钟
        Cache::set($cacheIndex, $express['data'], 3000);
        return $express['data'];
    }

    /**
     * curl请求指定url (post)
     * @param $url
     * @param string $data
     * @return bool|string
     */
    private function curlPost($url, string $data = '')
    {
        $header[] = "Content-type: text/xml";//设置http报文头text/xml
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_POST, 1);//1:post方式 0:get方式
        curl_setopt($ch, CURLOPT_HEADER, 0);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
        curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        $result = curl_exec($ch);
        curl_close($ch);
        return $result;
    }
}