該函數(shù)可以指定哪個(gè)元素被選定. 要么必須指定 values 和 ouput 屬性，要么指定 options 替代. 所有的輸出與 XHTML 兼容.

上表未提到的其它參數(shù)在 <input> 標(biāo)簽中以"名稱/屬性"對(duì)的方式顯示.

index.php:
require('Smarty.class.php');
$smarty = new Smarty;
$smarty->assign('cust_ids', array(1000,1001,1002,1003));
$smarty->assign('cust_names', array('Joe Schmoe','Jack Smith','Jane
Johnson','Carlie Brown'));
$smarty->assign('customer_id', 1001);
$smarty->display('index.tpl');


index.tpl:
{html_radios values=$cust_ids checked=$customer_id output=$cust_names separator="<br />"}


index.php:
require('Smarty.class.php');
$smarty = new Smarty;
$smarty->assign('cust_radios', array(
1001 => 'Joe Schmoe',
1002 => 'Jack Smith',
1003 => 'Jane Johnson',
1004 => 'Charlie Brown'));
$smarty->assign('customer_id', 1001);
$smarty->display('index.tpl');


index.tpl:
{html_radios name="id" options=$cust_radios checked=$customer_id separator="<br />"}


輸出: (both examples)
<input type="radio" name="id[]" value="1000">Joe Schmoe<br />
<input type="radio" name="id[]" value="1001" checked="checked"><br />
<input type="radio" name="id[]" value="1002">Jane Johnson<br />
<input type="radio" name="id[]" value="1003">Charlie Brown<br />