$templateobject->assign("ispackage", false);

        if ($package_index = $templateobject->get_template_vars('package_index') && $package = $templateobject->get_template_vars('package')) {

            foreach ($package_index as $onepackage) {

                if ($package == $onepackage['title']) {

                    $templateobject->assign("ispackage", true);

                }

            }

        }

# exact port?`

        {assign var="ispackage" value=false}

        {foreach from=$packageindex item=onepackage}

            {if in_array($package, $onepackage)}{assign var="ispackage" value=true}{/if}

        {/foreach}