//index.php $smarty = new Smarty;
$smarty->assign('newsTitle', 'Two Sisters Reunite after Eighteen Years at Checkout Counter.');
$smarty->display('index.tpl');
//index.tpl
{$newsTitle}
{$newsTitle|truncate}
{$newsTitle|truncate:30}
{$newsTitle|truncate:30:""}
{$newsTitle|truncate:30:"---"}
{$newsTitle|truncate:30:"":true}
{$newsTitle|truncate:30:"...":true}
输出结果： Two Sisters Reunite after Eighteen Years at Checkout Counter. Two Sisters Reunite after Eighteen Years at Checkout Counter. Two Sisters Reunite after… Two Sisters Reunite after Two Sisters Reunite after— Two Sisters Reunite after Eigh Two Sisters Reunite after E…
