Strange Error on working PHP

[DrkFusion]

Here is the php

PHP Code:

if ($string!="") {
      $condition.=" AND linkname LIKE '%".addslashes($string)."%' OR linkdesc LIKE '%".addslashes($string)."%'";
    }

$search=$DB_site->query_first("SELECT linkid,catagoryid,linkname,linkdesc FROM gportal_weblinkslink ORDER BY linkname");

while ($results=$DB_site->fetch_array($search)) {
    $linkid = $results['linkid'];
    $linkname = $results['linkname'];
    $linkdesc = $results['linkdesc'];
    $hits = $results['hits'];

 eval("\$resultbits .= \"".gettemplate("drkslinks_linkbit")."\";");
}

eval("\$navigation = \"".gettemplate("drkslinks_navigation")."\";");
eval("dooutput(\"".gettemplate('drkslinks_searchresults')."\");");;