PHP

Set a Remote File's Owner and Group

Demonstrates the Chilkat SFtp.SetOwnerAndGroup method, which sets the owner and group of a remote item. The arguments are the remote path (or handle), whether the first argument is a handle, and the new owner and group values.

Background: This is the SFTP equivalent of chown. Changing ownership is a privileged operation on Unix systems — ordinary users generally cannot give their files away — so expect it to fail unless the authenticated account has the necessary rights. It is most often used by administrative jobs that upload files which must then belong to a service account, such as a web server user.

Chilkat PHP Downloads

Download Chilkat for PHP

Chilkat2 PHP

<?php

use Chilkat2\SFtp;

// Demonstrates the SFtp.SetOwnerAndGroup method, which sets the owner and group of a remote item.
// The 1st argument is the remote path (or handle), the 2nd (isHandle) indicates which, and the
// 3rd and 4th are the new owner and group.

$sftp = new SFtp();

// Connect, authenticate, and initialize the SFTP subsystem.
$port = 22;
try {
    $sftp->Connect('sftp.example.com', $port);

    // 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.
    $password = 'mySshPassword';

    $sftp->AuthenticatePw('mySshLogin', $password);

    $sftp->InitializeSftp();

    // The 1st argument is a path, so isHandle is false.  Changing ownership typically requires
    // elevated privileges on the server.
    $isHandle = false;
    $sftp->SetOwnerAndGroup('subdir/report.pdf', $isHandle, 'www-data', 'www-data');
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

echo "Owner and group set.\n";

$sftp->Disconnect();