PHP

Get a Remote File's Last-Access Time

Demonstrates the Chilkat SFtp.GetFileLastAccessStr method, which returns a remote file's last-access date and time. The arguments are the remote path (or handle), whether symbolic links are followed, and whether the first argument is a handle.

Background: The access time is meant to update whenever a file is read, but in practice it is often unreliable: many systems mount filesystems with options like noatime to avoid a disk write on every read, so the value may not reflect recent reads. Treat it as a hint rather than an authoritative record of when a file was last opened.

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<?php

use Chilkat2\SFtp;

// Demonstrates the SFtp.GetFileLastAccessStr method, which returns a remote file's last-access
// date and time.  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;

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

echo 'Last accessed: ', $lastAccess, "\n";

$sftp->Disconnect();