Why is the value from the database not displayed in the smarty template?

Question

PHP

Hello, tell me why the record id is not displayed from the database to the template?

function maxListUsersViwed($id) {

global $db;
$max_list_users_viewed=$db->fetchRow("select `id` from ".TABLE_AQQ." where `user_id`='$id' ORDER BY `viewed` DESC LIMIT 1");
if(!$max_list_users_viewed) return 0;
    return $max_list_users_viewed;
}

$max_list_users_viewed = $usr->maxListUsersViwed($crt_usr);
$smarty->assign("$max_list_users_viewed", $max_list_users_viewed);

<a href="{$live_site}/edit.php/id={if isset($max_list_users_viewed) && $max_list_users_viewed}{$max_list_users_viewed}{else}0{/if}">&nbsp;</a>

What's wrong here? the else value is displayed, i.e. 0...

Answer 1

in assign, the dollar sign is extra in the first parameter