<?php

 function connectToFtp()
	{
		$host     = 'hostname';
		$login    = 'login';
		$password = 'pwd';

		$ftp = new \SFTP($host, $login, $password, 35); 
		$ftp->ssl = TRUE;
		$ftp->passive = TRUE;

		if ($ftp->connect())
		{
			return $ftp;
		}

		return FALSE;
}

// commands
$ftp->cd('some dir ...');
@$ftp->mkdir(...)
$ftp->put(..., ...FTP_BINARY)
$ftp->ls()
$ftp->delete()