PHP Extension Requires Chilkat v11.0.0+

FTP Connect, Examine Server Certificate, and then Authenticate

See more FTP Examples

Demonstrates how to connect to an FTP server, examine the server's SSL/TLS certificate, and then, if it meets the application's security requirements, proceed to authenticate. PHP Extension

<?php

include("chilkat.php");

$success = false;

//  This example assumes Chilkat Ftp2 to have been previously unlocked.
//  See Unlock Ftp2 for sample code.

$ftp = new CkFtp2();

$ftp->put_Hostname('www.authtls-ftps-server.com');
$ftp->put_Username('FTP_LOGIN');
$ftp->put_Password('FTP_PASSWORD');
$ftp->put_AuthTls(true);
$ftp->put_Port(21);

//  Connect to the FTP server using explicit TLS (AUTH TLS).
$success = $ftp->ConnectOnly();
if ($success == false) {
    print $ftp->lastErrorText() . "\n";
    exit;
}

//  Get the FTP server's certificate.
$serverCert = new CkCert();
$success = $ftp->GetServerCert($serverCert);
if ($success == false) {
    print $ftp->lastErrorText() . "\n";
    exit;
}

//  Now that we have the certificate, we can check it in any way we desire.
//  (See the online reference documentation for the certificate object's methods
//  and properties)...

//  Assuming the certificate is OK, proceed to authenticate with the FTP server.
$success = $ftp->LoginAfterConnectOnly();
if ($success == false) {
    print $ftp->lastErrorText() . "\n";
    exit;
}

//  Proceed with uploading/download files, etc...
//  

$ftp->Disconnect();
print 'Success.' . "\n";

?>