[网络协议]记录ssl证书验证不通过导致后台调用接口出现问题

最近搞了一个卡密授权接口，使用派api框架。出现问题ssl验证无法通过，报错curl: (60) SSL certificate problem: unable to get local issuer certificate，原因是Let's Encrypt因更换根证书，部分老旧设备访问时可能提示不可信。

接口执行流程如下：

1.通过curl向卡密验证接口提交卡密

$keyapi = json_decode($curl->get('https://api.msdnxz.com/?s=App.Key.Verify&thekey='.$key));

2.验证通过后调用数据库完整信息

200 success
access-control-allow-origin: *
cache-control: no-store, no-cache, must-revalidate
content-type: application/json;charset=utf-8
date: Fri, 01 Oct 2021 07:18:20 GMT
expires: Thu, 19 Nov 1981 08:52:00 GMT
pragma: no-cache
server: nginx
strict-transport-security: max-age=31536000

{
    "ret": 200,
    "data": {
        "message": "查询成功",
        "phone": "13688805189",
        "phonediqu": "广东深圳 移动",
        "lol": "没有找到",
        "wb": "没有找到",
        "qq": "10001",
        "qqlm": "8237768ad98104287f6ebf736748a484",
        "name": "没有找到",
        "sfz": "没有找到",
        "dz": "没有找到",
        "key_number": 47
    },
    "msg": ""
}

3.验证未通过调用提示信息

200 success
access-control-allow-origin: *
cache-control: no-store, no-cache, must-revalidate
content-type: application/json;charset=utf-8
date: Fri, 01 Oct 2021 07:17:07 GMT
expires: Thu, 19 Nov 1981 08:52:00 GMT
pragma: no-cache
server: nginx
strict-transport-security: max-age=31536000

{
    "ret": 200,
    "data": {
        "message": "查询成功",
        "phone": "请获取授权",
        "phonediqu": "请获取授权",
        "lol": "请获取授权",
        "wb": "请获取授权",
        "qq": "请获取授权",
        "qqlm": "请获取授权",
        "name": "请获取授权",
        "sfz": "请获取授权",
        "dz": "请获取授权",
        "key_number": -1
    },
    "msg": ""
}

解决方案：

1.更换ssl证书

获取证书的渠道很多，免费的一般可使用1年，比如阿里云、腾讯云都有提供。

2.跳过ssl证书验证

curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);