<?php
// app/AppKernel.php

public function registerBundles()
{
    $bundles = [
        // ...
        new Ijanki\Bundle\FtpBundle\IjankiFtpBundle(),
    ];
}

<?php

use Ijanki\Bundle\FtpBundle\Exception\FtpException;

public function indexAction()
{
    //...
    try {
        $ftp = $this->container->get('ijanki_ftp');
    	$ftp->connect($host);
    	$ftp->login($username, $password);
    	$ftp->put($destination_file, $source_file, FTP_BINARY);

    } catch (FtpException $e) {
    	echo 'Error: ', $e->getMessage();
    }
    //...
}