thinkphp 快递查询物流订单追踪

快递查询接口：选择的是快递鸟，原因：免费

http://www.kdniao.com/api-track

控制器中调用：

use Kuaidi\Kd;

//快递api申请的appid和key，快递公司，快递单号
 $kd=new Kd($kd_appid,$kd_key,$order['courier'],$order['courier_num']);
 return $kd->getOrderTracesByJson();

extend 中新建Kuaidi\Kd类

<?php
namespace Kuaidi;

class Kd
{
    protected $EBusinessID='';
    protected $AppKey='';
    protected $Cmp='';
    protected $Num='';
    protected $ReqURL='http://api.kdniao.com/Ebusiness/EbusinessOrderHandle.aspx';
    
  //快递api申请的appid和key，快递公司，快递单号
    public function __construct($appid,$key,$cmp,$num)
    {
        $this->EBusinessID=$appid;
        $this->AppKey=$key;
        $this->Cmp="'".$cmp."'";
        $this->Num="'".$num."'";
    }

    function getOrderTracesByJson()
    {
        $requestData = "{'OrderCode':'','ShipperCode': $this->Cmp,'LogisticCode': $this->Num}";
        $datas = array(
            'EBusinessID' => $this->EBusinessID,
            'RequestType' => '1002',
            'RequestData' => urlencode($requestData),
            'DataType' => '2',
        );
        $datas['DataSign'] = $this->encrypt($requestData, $this->AppKey);
        $result = $this->sendPost($this->ReqURL, $datas);
        return $result;
    }

    /**
     *  post提交数据
     * @param  string $url 请求Url
     * @param  array $datas 提交的数据
     * @return url响应返回的html
     */
    function sendPost($url, $datas)
    {
        $temps = array();
        foreach ($datas as $key => $value) {
            $temps[] = sprintf('%s=%s', $key, $value);
        }
        $post_data = implode('&', $temps);
        $url_info = parse_url($url);
        if (empty($url_info['port'])) {
            $url_info['port'] = 80;
        }
        $httpheader = "POST " . $url_info['path'] . " HTTP/1.0\r\n";
        $httpheader .= "Host:" . $url_info['host'] . "\r\n";
        $httpheader .= "Content-Type:application/x-www-form-urlencoded\r\n";
        $httpheader .= "Content-Length:" . strlen($post_data) . "\r\n";
        $httpheader .= "Connection:close\r\n\r\n";
        $httpheader .= $post_data;
        $fd = fsockopen($url_info['host'], $url_info['port']);
        fwrite($fd, $httpheader);
        $gets = "";
        $headerFlag = true;
        while (!feof($fd)) {
            if (($header = @fgets($fd)) && ($header == "\r\n" || $header == "\n")) {
                break;
            }
        }
        while (!feof($fd)) {
            $gets .= fread($fd, 128);
        }
        fclose($fd);
        return $gets;
    }

    /**
     * 电商Sign签名生成
     * @param data 内容
     * @param appkey Appkey
     * @return DataSign签名
     */
    function encrypt($data, $appkey)
    {
        return urlencode(base64_encode(md5($data . $appkey)));
    }
}