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PHP

SFTP Get/Set File Permission

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Demonstrates how to set the permissions of a file on the SFTP server.

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Chilkat2 PHP
<?php

use Chilkat2\SFtp;

// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

$sftp = new SFtp();

// Connect to the SSH/SFTP server.
$hostname = 'sftp.example.com';
$port = 22;
try {
    $sftp->Connect($hostname, $port);

    // Authenticate with the SSH server.  Chilkat SFTP supports
    // both password-based authenication as well as public-key
    // authentication.  This example uses password authenication.
    $sftp->AuthenticatePw('myLogin', 'myPassword');

    // After authenticating, the SFTP subsystem must be initialized:
    $sftp->InitializeSftp();
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

// Get the file permissions for the "hamlet.xml" file on the server.
// The hamlet.xml file is located in the qa_data directory found under the HOME directory of the SSH user account.
// We are passing the remote file path (we are not passing a file handle returned by a previous call to OpenFile).
$isHandle = false;
$followLinks = true;
$permVal = $sftp->GetFilePermissions('qa_data/hamlet.xml', $followLinks, $isHandle);
if ($permVal < 0) {
    echo $sftp->LastErrorText, "\n";
    exit;
}

// Note: Filesystem permissions on Linux/Unix/MacOSX are typically written in octal (POSIX file permissions).  For example 0644 is octal.
// To convert to decimal: octal 644 = 6*8^2 + 4*8 + 4 = 420 (decimal)
//
// The server may return a permissions value (in octal) such as 100644.
// The "100" indicates the file type, such as regular file or directory.

// Show the decimal value of the permissions
echo 'decimal permissions value: ', $permVal, "\n";

// To set the file permissions, pass the integer value.
// Let's change the permissions to 0664, which is 6*8^2 + 6*8 + 4 = 436 (decimal)
try {
    $sftp->SetPermissions('qa_data/hamlet.xml', $isHandle, 436);
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

echo "Success.\n";