PHP

Get a Remote File's Owner

Demonstrates the Chilkat SFtp.GetFileOwner method, which returns a remote file's owner. The arguments are the remote path (or handle), whether symbolic links are followed, and whether the first argument is a handle.

Background: Ownership determines who may read, write, or change a file under Unix permission rules, so reading the owner is useful for auditing or for deciding whether an operation will be allowed. Note that a server may report the owner as a numeric UID rather than a name if it cannot resolve the account, and that ownership is a Unix concept — servers on other platforms may return an empty or synthetic value.

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<?php

use Chilkat2\SFtp;

// Demonstrates the SFtp.GetFileOwner method, which returns a remote file's owner.  The 1st
// argument is the remote path (or handle), the 2nd selects whether symbolic links are followed,
// and the 3rd indicates whether the 1st argument is a handle.

$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 2nd argument (bFollowLinks) selects whether a symbolic link is followed to its target.
    // The 3rd argument (bIsHandle) is false here because the 1st argument is a path, not an
    // open handle.
    $bFollowLinks = true;
    $bIsHandle = false;

    $owner = $sftp->GetFileOwner('subdir/report.pdf', $bFollowLinks, $bIsHandle);
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

echo 'Owner: ', $owner, "\n";

$sftp->Disconnect();