How Can I Upload My File Into Ftp Server?

Hi,
i am new in yii framework.i have completed my project in localhost.how can i upload my file in ftp server in public_html folder.Is there need any changes in the file.here is the code about my index.php file:

<?php

// change the following paths if necessary
$yii=dirname(__FILE__).'/../yii/framework.1.1.12/yii.php';
$config=dirname(__FILE__).'/protected/config/main.php';

// remove the following lines when in production mode
defined('YII_DEBUG') or define('YII_DEBUG',true);
// specify how many levels of call stack should be shown in each log message
defined('YII_TRACE_LEVEL') or define('YII_TRACE_LEVEL',3);

require_once($yii);
Yii::createWebApplication($config)->run();



Please help me.

THANKS