$method = 'GET'; //请求方式 GET,POST
$secretType = 'MD5'; //验证方式MD5,Hash 通过后台 我的应用去修改
$api_url = 'https://登录后显示/pyi/117/257';
$appid  =   '应用id';// 在后台我的应用查看;
$secret =   '应用密钥';// 在后台我的应用查看;
$data = array(
    'appid'=>  '1',
    'format'=>  'json',
    'time'=>  '1545829466',
    'url_image'=>  '',
    'vehicle_license_side'=>  '',
    );

$data['appid'] = $appid;
$data['time'] = time();//当前服务器时间

if('MD5' == $secretType){
    ksort($data); //按照键名对数组排序，为数组值保留原来的键。
    $md5String = '';
    foreach($data as $key=>$val){
        if(strlen($val)>0){ //过滤空值
            $md5String.=$key.$val;
        }
    }
    $secret = md5($md5String.$secret);
}
$data['sign'] = $secret;
if('GET'==$method){
    $sendUrl = $api_url.'?'.http_build_query($data); //把数据转换成url参数形式，a=b&c=d&e=f
    $result = file_get_contents($sendUrl);
}else{
    $header = ['Content-Type: application/x-www-form-urlencoded;charset=utf-8'];
    $ch = curl_init();
    if(is_array($data))$data = http_build_query($data);
    curl_setopt($ch, CURLOPT_URL, $api_url);
    curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
    curl_setopt($ch, CURLOPT_POST, true);//POST
    curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
    curl_setopt($ch, CURLOPT_AUTOREFERER, true);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
    curl_setopt($ch, CURLOPT_ENCODING,'gzip,deflate');
    $result = curl_exec($ch);
}
$result = json_decode($result,true);
print_r($result);

                        

#!/usr/bin/python3
# -*- coding: UTF-8 -*-
#该代码为python3.7示例代码
import ssl,time,hashlib,string
from urllib import request,parse,error;
from urllib.parse import quote


api_url = 'https://登录后显示/pyi/117/257';
appid  =   '应用id';#在后台我的应用查看;
secret =   '应用密钥';#在后台我的应用查看;
data = {
                'appid':'1',
                'format':'json',
                'time':'1545829466',
                'url_image':'',
                'vehicle_license_side':'',
            };
data['appid'] = appid;
data['time'] = round(time.time());#当前服务器时间
keysArr = list(data.keys()) #取出字典key
keysArr.sort()#对字典key进行排序
md5String = '';
params = []
for key in keysArr:
    if data[key]:
        val = str(data[key])
        md5String+=key+val
        params.append(key + "=" + val )
md5String += secret;
m = hashlib.md5()
b = md5String.encode(encoding='utf-8')
m.update(b)
sign = m.hexdigest()

params.append('sign='+sign)#加入计算后的sign值去请求
params = '&'.join(tuple(params)); #把列表转成元组后用&分隔，最终转换成字符串 a=b&c=d&e=f

ssl._create_default_https_context = ssl._create_unverified_context
url = api_url+'?'+params;
url = quote(url, safe=string.printable)
req = request.Request(url)
opener = request.build_opener()
r = opener.open(fullurl=req)

doc = r.read();
print(doc.decode('utf-8'))