View file smarty/plugins/variablefilter.htmlspecialchars.php

<?php
/**
* Smarty plugin
* 
* @package Smarty
* @subpackage PluginsFilter
*/

/**
* Smarty htmlspecialchars variablefilter plugin
* 
* @param string $source input string
* @param object $ &$smarty Smarty object
* @return string filtered output
*/
function smarty_variablefilter_htmlspecialchars($source, $smarty)
{
    return htmlspecialchars($source, ENT_QUOTES);
} 

?>