因为测试域名比较多，而且强迫症就全加了免费的ssl，时间长了经常忘记，导致有的时候访问出错，所以就想着做个检测验证，刚好在网上也找到了，就记录一下

自动草稿

工作流程

1. 添加域名列表
2. 添加定时器，访问检测链接
3. 检测链接，邮箱通知错误域名

检测ssl方法

function get_cert_info($domain){     $context = stream_context_create(['ssl' => [        'capture_peer_cert' => true,        'capture_peer_cert_chain' => true,        ],    ]);    $client = stream_socket_client("ssl://".$domain.":443", $errno, $errstr, 30, STREAM_CLIENT_CONNECT, $context);    if($client==false) {         return false;    }    $params = stream_context_get_params($client);    $cert = $params['options']['ssl']['peer_certificate'];    $cert_info = openssl_x509_parse($cert);    return $cert_info;}

调用方法

$domain = 'www.baidu.com';$cert_info = get_cert_info($domain);$validTo_time_t = $cert_info['validTo_time_t'];$validTo_time_d = date('Y-m-d H:i:s', $validTo_time_t);echo($validTo_time_d);