PHP

Set an FTP Compatibility Option

Demonstrates the Chilkat Ftp2.SetOption method, which enables or disables a named compatibility option. The only argument is the option name; matching is case-insensitive, and prefixing a recognized name with No- disables it.

Background: Real-world FTP servers have quirks, and these named options are targeted workarounds for specific ones — for example Microsoft-TLS-1.2-Workaround addresses a known interoperability issue. Most applications never need any of them; reach for SetOption only when a documented server problem calls for a specific fix, and use the exact recognized name.

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<?php

use Chilkat2\Ftp2;

// Demonstrates the Ftp2.SetOption method, which enables or disables a named compatibility option.
// The only argument is the option name.  Prefix a name with "No-" to disable it.

$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';

try {
    $ftp->Connect();

    // Enable a recognized compatibility workaround.  Option-name matching is case-insensitive.
    $ftp->SetOption('Microsoft-TLS-1.2-Workaround');

    // To disable it, prefix the name with "No-":
    $ftp->SetOption('No-Microsoft-TLS-1.2-Workaround');
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

echo "Compatibility option toggled.\n";

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