基于（PHP）人脸核身微信H5页面（普通模式）搭建

#菜单Json数据
{
    "button": [
        {
            "type": "view", 
            "name": "人脸核身", 
            "url": "http://xxxxx" #说明：你的入口地址
        }
    ]
}

{
  "Response": {
    "BizToken": "CE661F1A-0F1E-45BD-BE13-34C05CEA7681",
    "Url": "https://open.weixin.qq.com/connect/oauth2/authorize?appid=wx2cca36a86d5035ae&redirect_uri=http%3A%2F%2Fopen.faceid.qq.com%2Fv1%2Fapi%2FgetCode%3FbizRedirect%3Dhttp%253A%252F%252Ffaceid.qq.com%252Fapi%252Fauth%252FgetOpenidAndSaveToken%253Ftoken%253DCE661F1A-0F1E-45BD-BE13-34C05CEA7681&response_type=code&scope=snsapi_base&state=&component_appid=wx9802ee81e68d6dee#wechat_redirect",
    "RequestId": "f904f4cf-75db-4f8f-a5ec-dc4f942c7f7a"
  }
}

<?php
class Face
{
    const SecretId = "请填入秘钥";
    const SecretKey = "请填写秘钥";
    const Url = "https://faceid.tencentcloudapi.com";

    //算法
    const Algo = "sha256";
    //规范请求串
    const HTTPRequestMethod = "POST";
    const CanonicalURI = "/";
    const CanonicalQueryString = "";
    const CanonicalHeaders = "content-type:application/json; charset=utf-8\nhost:faceid.tencentcloudapi.com\n";
    const SignedHeaders = "content-type;host";//参与签名的头部信息

    //签名字符串
    const Algorithm = "TC3-HMAC-SHA256";
    const Service = "faceid";
    const Stop = "tc3_request";

    /**
     * 实名核身鉴权
     */
    public function getDetectAuth()
    {
        $param = [
            'RuleId' => "1",//用于细分客户使用场景，申请开通服务后，可以在腾讯云慧眼人脸核身控制台（https://console.cloud.tencent.com/faceid） 自助接入里面创建，审核通过后即可调用
        ];
        return self::getCommonPostRequest("DetectAuth", $param);
    }


    /**
     * 鉴权
     * @param string $action 方法
     * @param array $param 参数
     * @param string $version 版本号
     * @return array
     */
    private static function getCommonPostRequest($action, array $param = [], $version = "2018-03-01")
    {
        //时间戳
        $timeStamp = time();
        //$timeStamp       =   1586333773;
        //参数转化Json
        $paramJson = json_encode($param);
        //规范请求串
        $hashedRequestPayload = self::HashEncryption($paramJson);
        $canonicalRequest = self::HTTPRequestMethod . "\n" .
            self::CanonicalURI . "\n" .
            self::CanonicalQueryString . "\n" .
            self::CanonicalHeaders . "\n" .
            self::SignedHeaders . "\n" .
            $hashedRequestPayload;
        //签名字符串
        $date            =   gmdate("Y-m-d", $timeStamp);//UTC 0时区的值
        $credentialScope = $date . "/" . self::Service . "/" . self::Stop;
        $hashedCanonicalRequest = self::HashEncryption($canonicalRequest);
        $stringToSign = self::Algorithm . "\n" .
            $timeStamp . "\n" .
            $credentialScope . "\n" .
            $hashedCanonicalRequest;


        //计算签名
        $secretDate = self::HashHmacSha256Encryption($date, 'TC3' . self::SecretKey);
        $secretService = self::HashHmacSha256Encryption(self::Service, $secretDate);
        $secretSigning = self::HashHmacSha256Encryption(self::Stop, $secretService);

        //签名
        $signature = self::HashHmacSha256Encryption($stringToSign, $secretSigning, false);
        echo $signature . " \n";
        $authorization = self::Algorithm . ' ' .
            'Credential=' . self::SecretId . '/' . $credentialScope . ', ' .
            'SignedHeaders=' . self::SignedHeaders . ', ' .
            'Signature=' . $signature;
        //Header头部
        $headers = [
            "Authorization: $authorization",
            "Host: faceid.tencentcloudapi.com",
            "Content-Type: application/json; charset=utf-8",
            "X-TC-Action: $action",
            "X-TC-Version: $version",
            "X-TC-Timestamp: $timeStamp",
            "X-TC-Region: ap-beijing"
        ];
        //请求
        $response = self::get_curl_request(self::Url, $paramJson, self::HTTPRequestMethod, $headers);
        //解析
        if (!$response) {
            return ['code' => 0, 'codeError' => '1002', 'msg' => 'Interface request failed'];
        }
        $response = json_decode($response, true);
        if (!isset($response['Response'])) {
            return ['code' => 0, 'codeError' => '1003', 'msg' => 'Response error'];
        }
        if (isset($response['Response']['Error'])) {
            return [
                'code' => 0
                , 'codeError' => $response['Response']['Error']['Code']
                , 'msg' => $response['Response']['Error']['Message']
                , 'RequestId' => $response['Response']['RequestId']
            ];
        } else {
            return ['code' => 1, 'msg' => 'ok', 'data' => $response['Response']];
        }
    }

    private static function HashEncryption($sign)
    {
        return strtolower(hash(self::Algo, $sign));
    }

    private static function HashHmacSha256Encryption($sign, $key, $flag = true)
    {
        return hash_hmac(self::Algo, $sign, $key, $flag);
    }

    /**
     * @param $url
     * @param array $param
     * @param string $mothod
     * @param array $headers
     * @param int $return_status
     * @param int $flag
     * @return array|bool|string
     */
    public static function get_curl_request($url, $param = [], $mothod = 'POST', $headers = [], $return_status = 0, $flag = 0)
    {
        $ch = curl_init();
        if (!$flag) {
            curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        }
        curl_setopt($ch, CURLOPT_TIMEOUT, 6);

        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        if (strtolower($mothod) == 'post') {
            curl_setopt($ch, CURLOPT_POST, true);
            curl_setopt($ch, CURLOPT_POSTFIELDS, $param);
        } else {
            $url = $url . "?" . http_build_query($param);
        }
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 2);
        curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
        #curl_setopt($ch, CURLOPT_PROXY, "127.0.0.1"); //代理服务器地址
        #curl_setopt($ch, CURLOPT_PROXYPORT, 12639); //代理服务器端口
        $ret = curl_exec($ch);
        $code = curl_getinfo($ch);
        curl_close($ch);
        if ($return_status == "1") {
            return array($ret, $code);
        }
        return $ret;
    }
}

//执行
$model = new Face();
$response = $model->getDetectAuth();
if ($response["code"] == 1) {
    //获取到鉴权URL进行跳转
    $url = $response["data"]["Url"];
    //鉴权并且调用人脸核身
    header("Location: {$url}");
} else {
    var_dump($response);
}