[NTLDR]

Firstly, you don't need to eval all those variables. Remember that the scope of all those variables is local to that function, this results in the problem of nothing showing:

PHP Code:

function showlast5posts($forumpath, $forumid){ 
    global $DB_site; 

    $getlast5posts = $DB_site->query("    SELECT threadid, title 
                                        FROM thread 
                                        WHERE forumid = '".intval($forumid)"'
                                        ORDER BY lastpost DESC 
                                        LIMIT 5"); 



        while($this5post = $DB_site->fetch_array($getlast5posts)) { 
            $forumspathe = $forumspath; 
            $tid = $this5post['threadid']; 
            $ttitle = $this5post['title']; 
            eval("\$GLOBALS[last5postsshow] = \"".gettemplate('forumhome_lastpostby')."\";"); 
                     
        } 
} 


The above is more like what you want. Also note that $templatesused only works before you have required global.php, so add the template along with the others at the top. Secondly I think using this method is very bad, especially if you have alot of forums as this adds one query per forum.