Anything wrong with this php code ...Site dies with it

I am trying to use this php block snippet and my site dies when I add this block.

// comma separated lists of terms tid to display nodes
$terms = "1";

// the number of nodes to show
$count = 5;


$sql = "SELECT distinct n.title, n.nid FROM {node} n INNER JOIN {term_node} tn ON n.nid = tn.nid WHERE tn.tid in ($terms) AND n.status=1 ORDER BY n.created DESC";
$result = db_query_range(db_rewrite_sql($sql), 0, $count);
if (db_num_rows($result)) {
  return node_title_list($result);
}
return t('No nodes available.');

Got this script from the below URL.
http://drupal.org/node/135344