Как настроить редирект 301 xfsearch с дубля на основную страницу?

$db->query ( "SELECT news_id FROM " . PREFIX . "_xfsearch WHERE tagvalue='{$xf}'" );

$row_xf = $db->super_query ( "SELECT tagname FROM " . PREFIX . "_xfsearch WHERE tagvalue='{$xf}' LIMIT 1" );
@header("HTTP/1.0 301 Moved Permanently");
@header("Location: /xfsearch/{$row_xf['tagname']}/{$xf}/");
die("Redirect");