如何将修改后的变量作为Smarty 2中函数的第二个参数发送?

I have this code which works perfectly in my template:

{php}
    echo date("F j, Y | g:iA",strtotime($this->_tpl_vars['eventObj']->get_evt_starttime()));
{/php} 

I want to write the same thing without PHP tags. I know that {$eventObj|strtotime} will send eventObj to strtotime", but how do I sent the result of this to date as the second parameter?

I couldn't find anything in the docs on sending the result of a modifier as the second parameter of another modifier. I could only find applying two modifiers to the same thing.

I tired putting parentheses and playing with the colon syntax but it wouldn't work. I need to just ask someone.

Thanks!

in php

$smarty->assign('time', "2012-01-01 01:01");

in smarty template

{$time|strtotime|date_format:"%B %e, %Y | %H:%m %p"}

output

January  1, 2012 | 01:01 AM