(PHP Extension) SCP Download/Upload Binary Files as Encoded Strings

Demonstrates how to upload and download binary files as encoded strings (base64, hex, etc.) using the SCP protocol (Secure Copy Protocol over SSH).

Chilkat PHP Downloads PHP Extension for Windows, Linux, MacOS, Alpine Linux, Solaris

<?php

// The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number.
// For example, if using Chilkat v9.5.0.48, then include as shown here:
include("chilkat_9_5_0.php");

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

$ssh = new CkSsh();

// Hostname may be an IP address or hostname:
$hostname = 'www.some-ssh-server.com';
$port = 22;

// Connect to an SSH server:
$success = $ssh->Connect($hostname,$port);
if ($success != true) {
    print $ssh->lastErrorText() . "\n";
    exit;
}

// Wait a max of 5 seconds when reading responses..
$ssh->put_IdleTimeoutMs(5000);

// Authenticate using login/password:
$success = $ssh->AuthenticatePw('myLogin','myPassword');
if ($success != true) {
    print $ssh->lastErrorText() . "\n";
    exit;
}

// Once the SSH object is connected and authenticated, we use it
// in our SCP object.
$scp = new CkScp();

$success = $scp->UseSsh($ssh);
if ($success != true) {
    print $scp->lastErrorText() . "\n";
    exit;
}

$remotePath = 'images/starfish.jpg';

// Download the binary file and return as a base64 string.
// See <a href="http://www.cknotes.com/chilkat-binary-encoding-list/">List of Encodings</a> for a list of possible encodings.
$encodedJpg = $scp->downloadBinaryEncoded($remotePath,'base64');
if ($scp->get_LastMethodSuccess() != true) {
    print $scp->lastErrorText() . "\n";
    exit;
}

$remotePath = 'images/starfish2.jpg';

// Now upload from the base64 string to the SSH server.
// Insided the call to UploadBinaryEncoded, the base64 string is decoded,
// and the decoded bytes are uploaded.  The resulting starfish2.jpg on the
// server will be identical to the original starfish.jpg
$success = $scp->UploadBinaryEncoded($remotePath,$encodedJpg,'base64');
if ($success != true) {
    print $scp->lastErrorText() . "\n";
    exit;
}

print 'SCP download/upload binary encoded success.' . "\n";

// Disconnect
$ssh->Disconnect();

?>