如何从PHP中的SSL证书文件获取到期日期

Question

我想从SSL证书文件中获取到期日期.我创建了一个PHP页面,用户可以上传他的SSL证书文件,我将不得不使用PHP获取该文件的到期日期.

Answer 1

以下代码应该有所帮助:

    $url = "https://www.google.com";
    $orignal_parse = parse_url($url, PHP_URL_HOST);
    $get = stream_context_create(array("ssl" => array("capture_peer_cert" => TRUE)));
    $read = stream_socket_client("ssl://".$orignal_parse.":443", $errno, $errstr, 30, STREAM_CLIENT_CONNECT, $get);
    $cert = stream_context_get_params($read);
    $certinfo = openssl_x509_parse($cert['options']['ssl']['peer_certificate']);

    echo '<pre>';
    print_r($certinfo);
    echo '</pre>';

到期日期应在$ certinfo ['validTo']字段下.

Answer 2

这对我有用:

$url = "https://www.google.com";
$orignal_parse = parse_url($url, PHP_URL_HOST);
$get = stream_context_create(array("ssl" => array("capture_peer_cert" => TRUE)));
$read = stream_socket_client("ssl://".$orignal_parse.":443", $errno, $errstr, 
30, STREAM_CLIENT_CONNECT, $get);
$cert = stream_context_get_params($read);
$certinfo = openssl_x509_parse($cert['options']['ssl']['peer_certificate']);

echo '<pre>';
print_r($certinfo);
echo '</pre>';

精细的ssl在这个fild中过期

[validTo_time_t] => 1523164135 // expire time.

转换日期和时间

$valid_from = date(DATE_RFC2822,$certinfo['validFrom_time_t']);
$valid_to = date(DATE_RFC2822,$certinfo['validTo_time_t']);
echo "Valid From: ".$valid_from."<br>";
echo "Valid To:".$valid_to."<br>";

结果:

有效期自:星期一,09十月2017 07:00:00 +0700有效期:周一,2018年10月10日06:59:59 +0700

Answer 3

$certpath = "your_certificate.cer";
$certinfo = openssl_x509_parse(file_get_contents($certpath));
if( $certinfo['validFrom_time_t'] > time() || $certinfo['validTo_time_t'] < time() )
    print "Certificate is expired.";