Mine

<?php
define('SMARTY_DIR', '/var/www/html/smarty/libs/');
require_once(SMARTY_DIR . 'Smarty.class.php');
$smarty = new Smarty();

$smarty->template_dir = 'smarty/default/templates/';
$smarty->compile_dir = 'smarty/default/templates_c/';
$smarty->config_dir = 'smarty/default/configs/';
$smarty->cache_dir = 'smarty/default/cache/';
$smarty->assign('name','nrgetik');
$smarty->display('index.tpl');
?>