php版https证书过期时间检测/并发送短信给相关技术人员(crontab定时脚本版)

<?php

$phone = array('1xxxxxxxxxx','13900000xxx');

function sendSms($phone,$content,$tag = 2){

$post_data = array('userid'=56xx,
'account'=>'develop@xxx.com',
'password'=>'xxxxx',
'content'=>$content,
'mobile'=>$phone
);
$url="http://sms.kingtto.com:9999/sms.aspx?action=send";
$o='';
foreach($post_data as $k=>$v){
//短信内容需要用urlencode编码，否则可能收到乱码
$o.="{$k}=".urlencode($v).'&';
}
$post_data=substr($o,0,-1);
$ch = curl_init();
curl_setopt($ch,CURLOPT_POST,1);
curl_setopt($ch,CURLOPT_HEADER,0);
curl_setopt($ch,CURLOPT_URL,$url);
curl_setopt($ch,CURLOPT_POSTFIELDS,$post_data);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); //如果需要将结果直接返回到变量里，那加上这句。
$result = curl_exec($ch);
$arr = json_decode(json_encode(simplexml_load_string($result)),true);
$new = array();
foreach ($arr as $k => $v) {
$new[$k] = strtolower($v);
}
unset($result,$arr);
return $new;

}

$server_name = "baidu.com";
if(!empty($argv[1])) $server_name = $argv[1]; //获取定时脚本传参域名(不带https://)值
$server_name = str_ireplace(['http://','https://'],[],$server_name);
$context = stream_context_create([ 'ssl' => [
'capture_peer_cert' => true,
'capture_peer_cert_chain' => true,
],
]);

$resource = stream_socket_client("ssl://$server_name:443", $errno, $errstr, 30, STREAM_CLIENT_CONNECT, $context);
$params = stream_context_get_params($resource);

$cert = $params['options']['ssl']['peer_certificate'];
$cert_info = openssl_x509_parse($cert);

$remain = $cert_info['validTo_time_t'] - time();
$date_num = (int)($remain/86400);
if ($remain < 0) {
$str = "certification expired\n";
} else {
$str = "certification will be expired in {$date_num} days\n";
}
$msg = "【xxxx】：{$server_name},https证书将于{$date_num}天后过期";
if($date_num<20){//证书过期时间小于20天时发送短信通知，此处用于定时脚本判断使用
foreach($phone as $v){
$res = sendSms($v,$msg);
}
}

?>