PHP

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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Chilkat2 PHP

<?php

use Chilkat2\Ftp2;

$ftp = new Ftp2();

$ftp->Hostname = 'ftp.example.com';
$ftp->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->Password = 'myPassword';

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

try {
    $ftp->Connect();

    $ftp->ChangeRemoteDir('public_html');
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

// The SessionLog contains the protocol commands and server replies collected so far.
echo $ftp->SessionLog, "\n";

try {
    $ftp->Disconnect();
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}