PHP对京东联盟CPS的API调用

class jd {
    public static $appKey = '';
    public static $appSecret = '';
    public static $access_token = '';
    const URL = 'https://api.jd.com/routerjson?';

    /* 发送GET请求，跳过ssl证书检测 */
    function curl_get($url){
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);    // https请求 不验证证书和hosts
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);    // 要求结果为字符串且输出到屏幕上
        curl_setopt($ch, CURLOPT_HEADER, 0); // 不要http header 加快效率
        curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (compatible; MSIE 5.01; Windows NT 5.0)');
        curl_setopt($ch, CURLOPT_TIMEOUT, 15);
        $output = curl_exec($ch);
        curl_close($ch);
        return $output;
    }

    //设置参数
    function setParameter($specialParameter){
        $time = date('Y-m-d H:i:s', time());

        $publicParameter = array(
            'access_token'         => static::$access_token,
            'app_key'             => static::$appKey,
            'v'                 => '2.0',
            'timestamp'         => $time,
        );

        $params = array_merge($publicParameter, $specialParameter);
        $sign = self::getStringToSign($params);

        $parameter = array_merge($params, ['sign'=>$sign]);
        ksort($parameter);
        $str = '';
        foreach($parameter as $key => $value){
            $str .= urlencode($key) . '=' . urlencode($value) . '&';
        }

        return $str;
    }

    //生成签名
    function getStringToSign($parameter){

        ksort($parameter);
        $str = '';
        foreach($parameter as $key => $value){
            $str .= urlencode($key) . urlencode($value);
        }

        $str = static::$appSecret . $str . static::$appSecret;

        $signature = strtoupper(md5($str));

        return $signature;
    }

    //获取推广商品信息
    public function getGoodsInfo($skuId){
    
        $specialParameter = [
            'method'    => 'jingdong.service.promotion.goodsInfo',
            '360buy_param_json' => json_encode([
                'skuIds'    => $skuId
            ])
        ];

        $str = self::setParameter($specialParameter);
        $url = self::URL.$str;

        return json_decode(self::curl_get($url));
    }
}

  object(stdClass)#59 (1) {
  ["jingdong_service_promotion_goodsInfo_responce"]=>
  object(stdClass)#60 (2) {
    ["code"]=>
    string(1) "0"
    ["getpromotioninfo_result"]=>
    string(499) "{
        "message":"接口成功",
        "result":[{
            "commisionRatioPc":0.60,
            "commisionRatioWl":0.60,
            "endDate":4102416000000,
            "goodsName":"联想（ThinkPad ）轻薄系列E450(20DCA082CD)14英寸笔记本电脑 (i5-5200U 4G 500G 2G独显 win10)",
            "imgUrl":"http://img14.360buyimg.com/n1/jfs/t3025/299/208536801/248419/ef1e3b38/579729e0N1e605005.jpg",
            "materialUrl":"http://item.jd.com/2346382.html",
            "shopId":1000000158,
            "skuId":2346382,
            "startDate":1475251200000,
            "unitPrice":3999.0,
            "wlUnitPrice":3999
        }],
        "sucessed":true}"
    }
  }