Smarty is a template engine that separates design from code for better maintainability. It allows designing templates with variables that are populated from PHP, improving security, speed and front-end development. To use Smarty, download it and configure template, cache and other folders, then populate variables in PHP and display templates.

1. Smarty - Template Engine

6. Welcome <!--{$name}--> to Smarty <script language=&quot;javascript&quot;> var foo = <!--{$foo}-->; function dosomething() { alert(&quot;foo is &quot; + foo); } dosomething(); </script>

7. <?php $smarty = new Smarty(); $smarty->assign('firstname', 'Doug'); $smarty->assign('lastname', 'Evans'); $smarty->assign('meetingPlace', 'New York'); $smarty->display('index.tpl'); ?>

8. <? php $smarty->assign('cust_ids', array(56,92,13)); $smarty->assign('cust_names', array(                               'Joe Schmoe',                               'Jane Johnson',                               'Charlie Brown')); $smarty->assign('customer_id', 92); ?>

9. <select name=&quot;customer_id&quot; size=&quot;{$cust_names|@count}&quot;> {html_options values=$cust_ids output=$cust_names selected=$customer_id} </select>

10. Thank you