PHP Extension Requires Chilkat v10.1.2+

Secure FTP with Client Certificate

See more FTP Examples

Chilkat FTP2 provides the ability to use a client certificate with secure FTP (implicit or explicit SSL/TLS). This example demonstrates how to load a certificate from a .pfx and use it as the client-side SSL cert. Note: Client-side certificates are only needed in situations where the server demands one. PHP Extension

<?php

include("chilkat.php");

$success = false;

//  This example requires the Chilkat API to have been previously unlocked.
//  See Global Unlock Sample for sample code.

$ftp = new CkFtp2();

$ftp->put_Hostname('ftp.example.com');
$ftp->put_Port(21);
$ftp->put_Username('test');
$ftp->put_Password('test');

//  This example will use explict TLS/SSL.
//  Establish an explicit secure channel after connection
//  on the standard FTP port 21.
$ftp->put_AuthTls(true);

//  The Ssl property is for establishing an implicit SSL connection
//  on port 990.  Because this example uses explicit SSL, it 
//  should remain false.
$ftp->put_Ssl(false);

//  Load a certificate from a .pfx
//  A PFX may contain several certs, including the certificates
//  in a chain of authority.
$certStore = new CkCertStore();

$password = '***';
//  Load the certs from a PFX into an in-memory certificate store:
$success = $certStore->LoadPfxFile('chilkat.pfx',$password);
if ($success != true) {
    print $certStore->lastErrorText() . "\n";
    exit;
}

//  Find the desired certificate.
$jsonCN = new CkJsonObject();
$jsonCN->UpdateString('CN','cert common name');

$cert = new CkCert();
$success = $certStore->FindCert($jsonCN,$cert);
if ($success == false) {
    print 'Certificate not found!' . "\n";
    exit;
}

//  Use this certificate for our secure (SSL/TLS) connection:
$success = $ftp->SetSslClientCert($cert);

//  Connect and login to the FTP server.  The connection is 
//  made secure because of the AuthTls setting.
$success = $ftp->Connect();
if ($success != true) {
    print $ftp->lastErrorText() . "\n";
    exit;
}
else {
    //  LastErrorText contains information even when
    //  successful. This allows you to visually verify
    //  that the secure connection actually occurred.
    print $ftp->lastErrorText() . "\n";
}

print 'Secure FTP Channel Established!' . "\n";

//  Do whatever you're doing to do ...
//  upload files, download files, etc...

//  .....
//  .....

$success = $ftp->Disconnect();

?>