Smarty -> PHP

I use a phplinkdirectory theme that uses smarty.

Smarty looks like this (header.tpl):

Code:

{* Calculate title from path *}
{capture name="title"}
{if count($path) > 1} - {/if}
{foreach from=$path item=category name=path}
{if $smarty.foreach.path.iteration gt 2}
>
{/if}
{if not $smarty.foreach.path.first}
{$category.TITLE}
{/if}
{/foreach}
{/capture}
{strip}
{if $title_prefix}
{assign var="in_page_title" value=$title_prefix|cat:$category.TITLE}
{else}
{assign var="in_page_title" value=$category.TITLE}
{/if}
{assign var="description" value=$category.DESCRIPTION}

{include file="header.tpl"}
{include file="top_bar.tpl"}

{* Calculate the number of categories per row *}
{php}
$this->assign('cats_per_col', ceil(count($this->get_template_vars('categs')) / CATS_PER_ROW));
{/php}
{if $cats_per_col > 15}
{php}
$this->assign('cats_per_col', ceil(count($this->get_template_vars('categs')) / (CATS_PER_ROW + 1)));
{/php}
{/if}

{* Show category search results *}
{if $search_category}
{$search_category}
{/if}

{if isset($have_search_results) and $have_search_results == 0}
<br /><div class="link">
<p>{l}Sorry, no records found that match your keyword(s){/l}: "{$search|escape|wordwrap:200:"\n":true}"</p>
<p>{l}Suggestions{/l}:</p>
<p>
<ul>
<li>{l}Make sure all words are spelled correctly{/l}.</li>
<li>{l}Try different keywords{/l}.</li>
<li>{l}Try more general keywords{/l}.</li>
</ul>
</p>
</div><br />
{/if}

{* Categories *}
{if !empty($categs)}

{* Categories *}
<table border="0" cellpadding="0" cellspacing="0" width="100%">
<tr>
{foreach from=$categs item=cat name=categs}
{if ($smarty.foreach.categs.iteration mod $cats_per_col eq 1 and $cats_per_col gt 1) or $smarty.foreach.categs.first}<td valign="top"{if $category.ID==0} {/if}>{/if}

{* Start Categories Modifications By Vegabond *}

{if $category.ID==0}
<div id="cat_caption">
<p><img src="{$smarty.const.DOC_ROOT}/templates/{$smarty.const.USE_TEMPLATE}/images/cat.caption.right.gif" /></p>
<h1><a href="{if $smarty.const.ENABLE_REWRITE}{$cat.TITLE_URL|escape}/{else}index.php?c={$cat.ID}{/if}">{$cat.TITLE|escape}</a>{if $smarty.const.CATS_COUNT} <span class="count">({$cat.COUNT})</span>{/if}
</h1>
</div>

{* Display subcategories *}

{if !empty($cat.SUBCATS)}<div id="cat_body">
<p><img src="{$smarty.const.DOC_ROOT}/templates/{$smarty.const.USE_TEMPLATE}/images/cat.body.right.gif" /></p>
{foreach from=$cat.SUBCATS item=scat name=scategs}

<div class="subcat"><a href="{if $smarty.const.ENABLE_REWRITE}{$cat.TITLE_URL|escape}/{$scat.TITLE_URL|escape}/{else}index.php?c={$scat.ID}{/if}">{$scat.TITLE|escape}</a></div>
{/foreach}
</div>

<div id="cat_footer">
<p><img src="{$smarty.const.DOC_ROOT}/templates/{$smarty.const.USE_TEMPLATE}/images/cat.footer.right.gif" /></p>
<img src="{$smarty.const.DOC_ROOT}/templates/{$smarty.const.USE_TEMPLATE}/images/cat.footer.left.gif" />
</div>
{/if}

{else}
<div class="subcat"><a href="{if $smarty.const.ENABLE_REWRITE}{$cat.TITLE_URL|escape}/{else}index.php?c={$cat.ID}{/if}">{$cat.TITLE|escape}</a>{if $smarty.const.CATS_COUNT} <font size="1">({$cat.COUNT})</font>{/if}</div>
{/if}

{* End Categories Modifications By Vegabond *}

{if ($smarty.foreach.categs.iteration mod $cats_per_col eq 0 and $cats_per_col gt 1) or $smarty.foreach.categs.last}</td>{/if}
{/foreach}
</tr></table><br />
{/if}
{if $category.ID==0}<br />{/if}

{if $smarty.const.FTR_ENABLE == 1 and !empty($feat_links)}
<div class="break"></div>

<div class="catcaption">{l}Featured Listing{/l}</div><div class="dot"></div>

{foreach from=$feat_links item=link name=links}
<div class="link">{include file="f.link.tpl" link=$link}</div>
{/foreach}
{/if}

{* Links heading and sorting*}
{if ($uid || $search || !empty($category.ID) || $list) && !empty($links)}
<div class="link">
<div id="cat_caption">
<p><img src="{$smarty.const.DOC_ROOT}/templates/{$smarty.const.USE_TEMPLATE}/images/cat.caption.right.gif" /></p>

{if not $list}<p class="sort">{l}Sort by{/l}:
{if $smarty.const.ENABLE_PAGERANK and $smarty.const.SHOW_PAGERANK}{if $sort eq 'P'} {l}PageRank{/l}{else} <a href="?s=P{if !empty($p)}&p={$p}{/if}{if not $smarty.const.ENABLE_REWRITE}&c={$category.ID}{/if}{if $search}&search={$search}{/if}{if $uid}&uid={$uid}{/if}"> {l}PageRank{/l}</a>{/if} |{/if}
{if $sort eq 'H'} {l}Hits{/l}{else} <a href="?s=H{if !empty($p)}&p={$p}{/if}{if not $smarty.const.ENABLE_REWRITE}&c={$category.ID}{/if}{if $search}&search={$search}{/if}{if $uid}&uid={$uid}{/if}">{l}Hits{/l}</a>{/if}
{if $sort eq 'A'} | {l}Alphabetical{/l}{else} | <a href="?s=A{if !empty($p)}&p={$p}{/if}{if not $smarty.const.ENABLE_REWRITE}&c={$category.ID}{/if}{if $search}&search={$search}{/if}{if $uid}&uid={$uid}{/if}">{l}Alphabetical{/l}</a>{/if}
{/if}

<h1>{l}Regular Listing{/l}</h1>
</div>

<div id="cat_body">
<p><img src="{$smarty.const.DOC_ROOT}/templates/{$smarty.const.USE_TEMPLATE}/images/cat.body.right.gif" /></p>
{foreach from=$links item=link name=links}
{include file="link.tpl" link=$link}<div class="dot"></div>
{/foreach}
</div>
<div id="cat_footer">
<p><img src="{$smarty.const.DOC_ROOT}/templates/{$smarty.const.USE_TEMPLATE}/images/cat.footer.right.gif" /></p>
<img src="{$smarty.const.DOC_ROOT}/templates/{$smarty.const.USE_TEMPLATE}/images/cat.footer.left.gif" />
</div>

{/if}

{if $category.ID==0 and count($categs) gt 0}<div class="dot"></div>{include file="ads.tpl"}{/if}

{* Javascript for tracking link clicks *}
{if $StopLinkHits eq 0}
<script language="javascript" type="text/javascript">
/* <![CDATA[ */
var root = '{$smarty.const.DOC_ROOT}';
{literal}
var a = document.getElementsByTagName("a");
for(i = 0; i< a.length; i++)
if(a[i].id != '')
a[i].onclick = count_link;
function count_link() {
i = new Image();
i.src= root+'/cl.php?id='+this.id;
return true;
}
{/literal}
/* ]]> */
</script>
{/if}

{include file="footer.tpl"}
{/strip}

Since the template of my webdirectory, Smfoogle, uses Smarty, I need to be able to display top header, and the left navigational menu.. Where the "categories" are displayed, I would like to call another .php file which uses another database for link advertising.

Any idea as to how I can do this?