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.

<?php

$success = 0;

$socket = new COM("Chilkat.Socket");

//  Connect to the server using TLS.
$bTls = 1;
$maxWaitMs = 5000;
$success = $socket->Connect('example.com',5000,$bTls,$maxWaitMs);
if ($success == 0) {
    print $socket->LastErrorText . "\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 = new COM("Chilkat.Cert");
$success = $socket->GetServerCert($cert);
if ($success == 0) {
    print $socket->LastErrorText . "\n";
    exit;
}

print 'Server certificate subject: ' . $cert->SubjectCN . "\n";
print 'Issued by: ' . $cert->IssuerCN . "\n";

?>