Get the Server Certificate from a TLS Connection

See more Socket/SSL/TLS Examples

Demonstrates Socket.GetServerCert, which copies the certificate presented by the remote TLS server into a Cert object for inspection.

use chilkat();

$success = 0;

$socket = chilkat::CkSocket->new();

#  Connect to the server using TLS.
$bTls = 1;
$maxWaitMs = 5000;
$success = $socket->Connect("example.com",5000,$bTls,$maxWaitMs);
if ($success == 0) {
    print $socket->lastErrorText() . "\r\n";
    exit;
}

#  Copy the certificate presented by the remote TLS server, then inspect it.  This can be used to
#  validate the server's identity.
$cert = chilkat::CkCert->new();
$success = $socket->GetServerCert($cert);
if ($success == 0) {
    print $socket->lastErrorText() . "\r\n";
    exit;
}

print "Server certificate subject: " . $cert->subjectCN() . "\r\n";
print "Issued by: " . $cert->issuerCN() . "\r\n";