<?php

// set some template directories
$smarty->setTemplateDir(array(
    'one' => './templates',
    'two' => './templates_2',
    'three' => './templates_3',
));

// get all directories where templates are stored
$template_dir = $smarty->getTemplateDir();
var_dump($template_dir); // array

// get directory identified by key
$template_dir = $smarty->getTemplateDir('one');
var_dump($template_dir); // string

?>