Hey maleeb,

Any reason why you are using that library instead of using Laravel 4.1's built in SSH functionality (probably extends the SSH2 library anyway), documentation for executing commands and getting the console output can be found here:

http://laravel.com/docs/ssh

EDIT:- Sorry, my bad, I see that you're trying to run this command from a server NOT using Laravel...

Try this:

<?php

include('Net/SSH2.php');

$ssh = new Net_SSH2('www.domain.tld');
if (!$ssh->login('username', 'password')) {
    exit('Login Failed');
}

if (!($stream = ssh2_exec($con, "ls -al" ))) {
            echo "fail: unable to execute command\n";
        } else {
            // collect returning data from command
            stream_set_blocking($stream, true);
            $data = "";
            while ($buf = fread($stream,4096)) {
                $data .= $buf;
            }
            fclose($stream);
        }

Hope this helps, Cheers, Bobby