PHP Extension

Capture the FTP Session Log

Demonstrates the SessionLog property (with KeepSessionLog), which holds the in-memory FTP protocol conversation — commands and server replies — collected during the session.

Background: When an FTP operation fails for a non-obvious reason, the exact command/reply exchange is the most useful diagnostic there is, and SessionLog captures it verbatim once KeepSessionLog is enabled. Passwords are omitted, so it is safe to log or attach to a bug report. Over a long session it grows without bound; clear it with ClearSessionLog to bound memory or to isolate the log for one operation.

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PHP Extension

<?php

include("chilkat.php");

$success = false;

$ftp = new CkFtp2();

$ftp->put_Hostname('ftp.example.com');
$ftp->put_Username('myFtpLogin');

//  Normally you would not hard-code the password in source.  You should instead obtain it
//  from an interactive prompt, environment variable, or a secrets vault.
$ftp->put_Password('myPassword');

//  Keep an in-memory log of the FTP protocol conversation for troubleshooting.  Passwords are
//  not recorded in it.
$ftp->put_KeepSessionLog(true);

$success = $ftp->Connect();
if ($success == false) {
    print $ftp->lastErrorText() . "\n";
    exit;
}

$success = $ftp->ChangeRemoteDir('public_html');
if ($success == false) {
    print $ftp->lastErrorText() . "\n";
    exit;
}

//  The SessionLog contains the protocol commands and server replies collected so far.
print $ftp->sessionLog() . "\n";

$success = $ftp->Disconnect();
if ($success == false) {
    print $ftp->lastErrorText() . "\n";
    exit;
}


?>