是否可以将变量从tpl文件传递到php文件？

Is possible pass from php to tpl with this:

PHP:

  $smarty->assign('variable',$foo);

TPL:

  {$variable}

But i don't know if is possible pass a variable from tpl to php...

I have never tried it, but take a look to get_template_vars() and {php} tag. Maybe it is what you are looking for.