if ($row=$db->sql_fetchrow($result)){$del_sql='';do{$del_sql.= (($del_sql!='') ? ', ':'') .$row['topic_id'];}while($row=$db->sql_fetchrow($result));$sql="DELETE FROM{$table_prefix}topics WHERE topic_id IN ($del_sql)";$db->sql_query($sql);}$db->sql_freeresult($result);$del_sql='';$sql="SELECT topic_id, MIN(post_id) AS first_post_id, MAX(post_id) AS last_post_id, COUNT(post_id) AS total_posts FROM{$table_prefix}posts GROUP BY topic_id";$result=$db->sql_query($sql);while($row=$db->sql_fetchrow($result)){$del_sql.= (($del_sql!='') ? ', ':''