[SMARTY] eval problem

Hi, I need your help with the EVAL function.

In PHP I have a list of 27 fields, like this:

$advert['act1'] = 'foo';
$advert['act2'] = 'bar';
...
$advert['act26'] = 'doo';
$advert['act27'] = 'da';

I know this smells like it should be an array, but for
particular reasons it is not. So the template looks
like this:
{$advert.act1}<br>
{$advert.act2}<br>
...
{$advert.act26}<br>
{$advert.act27}<br>

Can I replace this with a loop? Something like:
{section name=foo start=1 loop=27}
 {eval var="\$advert.act`$smarty.section.foo.index`"}
<br>
{/section}

The code above does not work, by the way. The line
{eval var="\$advert.act`$smarty.section.foo.index`"}
produces:
$advert.act1

If I add braces:
{eval var="{\$advert.act`$smarty.section.foo.index`}"}
it displays:
{\.act1"}

So I must be missing something here.

Thanks,
Mike

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