smarty, send to file date

I have in a PHP file this arr开发者_开发问答ay:

array(1, 2, 3);

How can I send this array to a Smarty .tpl?

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$smartyobject->assign("varname", array(1, 2, 3));

after this, you can access it as {$varname} (or whatever you set your delimiters to)