<?php

/*****************
* 示例代码
******************/
//appid参数 appkey参数在     身份认证-创建/管理AppID中获取
$appid      = '6***3';                                                                  //appid参数
$appkey     = '5d****************************58';                                       //appkey参数
$timestamp  = time();                                                                   //获取当前时间戳
$name       = '***';                                                                    //待验证用户姓名
$idNo       = '3****************3';                                                     //待验证用户 身份证号码
$begin_date = '20051231';                                                               //身份证背面有效时间---开始时间     格式 20051231
$end_date   = '20051231';                                                               //身份证背面有效时间---结束时间     格式 20051231


$temp_data = array(
    'appkey'    => $appkey ,
    'timestamp' => $timestamp,
    'idNo'      => $idNo,
    'name'      => $name,
);

//生成签名
ksort($temp_data);
reset($temp_data);
$signature = hash('sha256', http_build_query($temp_data));


$post_data = array(
    'appid'     => $appid,
    'timestamp' => $timestamp,
    'signature' => $signature,
    'name'      => $name,
    'idNo'      => $idNo,
    'begin_date'=> $begin_date,
    'end_date'  => $end_date,
);

$curl = curl_init();
curl_setopt_array($curl, array(
    CURLOPT_URL             => "https://tpa.mysubmail.com/factor/idcard4",
    CURLOPT_RETURNTRANSFER  => true,
    CURLOPT_HTTP_VERSION    => CURL_HTTP_VERSION_1_1,
    CURLOPT_CUSTOMREQUEST   => "POST",
    CURLOPT_POSTFIELDS      => http_build_query($post_data),
    CURLOPT_HTTPHEADER      => array("Content-Type: application/x-www-form-urlencoded"),
));
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);

if ($err) {
    echo "cURL Error #:" . $err;
} else {
    echo $response;
}