<?php
use Neto\net\ssh\SSHConnection;
use Neto\net\ssh\auth\SSHPasswordAuthentication;

$ssh = new SSHConnection();
$ssh->open('127.0.0.1');
$ssh->authenticate(
    new SSHPasswordAuthentication('user', 'password'));

$directoryIterator = $ssh->getDirectoryIterator('/var/www');

while ($directoryIterator->valid()) {
    $splFileInfo = $directoryIterator->current();

    if ($splFileInfo->isFile()) {
        $splFileObject = $directoryIterator->openFile('r');
    }

    $directoryIterator->next();
}

<?php
use Neto\net\ssh\SSHConnection;
use Neto\net\ssh\auth\SSHPublicKeyAuthentication;

$ssh = new SSHConnection();
$ssh->open('example.com');
$ssh->authenticate(
    new SSHPublicKeyAuthentication('user',
                                   '/home/user/.ssh/id_rsa.pub',
                                   '/home/user/.ssh/id_rsa',
                                   'passphrase'));

$directoryIterator = $ssh->getDirectoryIterator('/var/www');

while ($directoryIterator->valid()) {
    $splFileInfo = $directoryIterator->current();

    if ($splFileInfo->isFile()) {
        $splFileObject = $directoryIterator->openFile('r');
    }

    $directoryIterator->next();
}