# set one variable:
$t->param( some => 'value' );

# set a number of them
$t->param(
          one => 'value',
          two => 'value',
          three => 'value',
    );

# pass in an existing hash
$t->param( %lots_of_values );

# pass in a reference to a hash
$t->param( $ref_to_hash );
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I think I know what you mean. I use <TMPL_LOOP> not only when I'm doing actual loops, but to speed up the coding when retrieving, say, a single user's information from a database. I don't think there's any better way, because this isn't really a bad way to do it in the first place.

I always use something like:

$tmpl->param( 
   filename => 'one_users_information.tmpl',
   user =>\@userinfo
);
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HTH.

You could just put all the parameters into place with one call, like this:

$template->param( foo       => "bar",
                  username  => "steve",
                  is_admin  => 0 );
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Sure that doesn't use loops, or arrays as the tmpl_loop construct would, but you've avoided multiple param() calls.