tp5签名验证

<?php
namespace app\admin\controller;
use think\Controller;
use think\Db;

//ID
defined('AppId') or define('AppId', '用户ID');
//key
defined('AppKey') or define('AppKey', '密钥');
//URL
defined('ReqURL') or define('ReqURL', 'http://域名/admin/testapi/sver');

class Testapi extends controller
{



    public function index(){
//        $requestData= "{'OrderCode':'222','ShipperCode':'333','LogisticCode':'444'}";
        $requestData = '{"a":1,"b":2,"c":3,"d":4,"e":5}';

        $data = array(
            'AppId' => AppId,
            'AppKey'=> AppKey,
            'timeStamp'=>strtotime(date('Y-m-d H:i:s')),
        );

        $datas = array(
            'AppId' => AppId,
            'RequestType' => '1002',
            'RequestData' => urlencode($requestData) ,
            'DataType' => '2',
        );
        $datas['DataSign'] = $this->encrypt($data);  //客户输入的验证
        $result=$this->sendPost(ReqURL, $datas);

        $data_sign=$this->verifysign();  //获取数据表中的验证
        if($data_sign==$datas['DataSign']){
            echo '验证一致';
        }else{
            echo '名称和key不一致';
            exit();
        }

//        return $datas['DataSign'];
        return $result;
    }

    public function sver(){
        $data=input('post.');
        $json0=$data['RequestData'];
        $obj=json_decode($json0);  //对象
        $arr=json_decode($json0, true); //数组
//        $arr=explode(',',$json);
//        var_dump($json0);
//        var_dump(json_decode($json0));
//        var_dump(json_decode($json0, true));

        print_r($obj);
//        print_r($json0);
    }

    /**
     *  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;
    }




    function encrypt($data) {
        ksort($data);
        $arr2 = array_values($data);
        $da=implode("-", $arr2);
        return urlencode(base64_encode(md5($da)));
    }




    public function verifysign(){
        $res=Db::name('sign')->where('id',1)->find();
        $time=strtotime(date('Y-m-d H:i:s'));
        $data=$res['name'].'-'.$res['key'].'-'.$time;
        $sign=urlencode(base64_encode(md5($data)));
        return $sign;
    }
}