(PHP using ActiveX) SSL Client Certificate

Demonstrates how to connect to an SSL server using a client-side certificate, send a simple message, receive a simple response, and disconnect.

Download Chilkat Socket ActiveX

<?php

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

$success = $socket->UnlockComponent('Anything for 30-day trial');
if ($success != 1) {
    print $socket->lastErrorText() . "\n";
    exit;
}

//  Create an instance of a certificate store object, load a PFX file,
//  locate the certificate we need, and use it for signing.
//  (a PFX file may contain more than one certificate.)
$certStore = new COM("Chilkat.CertStore");
//  The 1st argument is the filename, the 2nd arg is the
//  PFX file's password:
$success = $certStore->LoadPfxFile('chilkat_secret.pfx','secret');
if ($success != 1) {
    print $certStore->lastErrorText() . "\n";
    exit;
}

// cert is a Chilkat.Cert
$cert = $certStore->FindCertBySubjectCN('Chilkat Software, Inc.');
if (is_null($cert)) {
    print $certStore->lastErrorText() . "\n";
    exit;
}

$socket->SetSslClientCert($cert);

$ssl = 1;
$maxWaitMillisec = 20000;

//  The SSL server hostname may be an IP address, a domain name,
//  or "localhost".  You'll need to change this:

$sslServerHost = '123.123.88.88';
$sslServerPort = 8123;

//  Connect to the SSL server:
$success = $socket->Connect($sslServerHost,$sslServerPort,$ssl,$maxWaitMillisec);
if ($success != 1) {
    print $socket->lastErrorText() . "\n";
    exit;
}

//  Set maximum timeouts for reading an writing (in millisec)
$socket->MaxReadIdleMs = 20000;
$socket->MaxSendIdleMs = 20000;

//  Send a "Hello Server! -EOM-" message:
$success = $socket->SendString('Hello Server! -EOM-');
if ($success != 1) {
    print $socket->lastErrorText() . "\n";
    exit;
}

//  The server (in this example) is going to send a "Hello Client! -EOM-"
//  message.  Read it:

$receivedMsg = $socket->receiveUntilMatch('-EOM-');
if (is_null($receivedMsg)) {
    print $socket->lastErrorText() . "\n";
    exit;
}

//  Close the connection with the server
//  Wait a max of 20 seconds (20000 millsec)
$socket->Close(20000);

print $receivedMsg . "\n";
?>