经测试代码如下：
<?PHP
/**
* PHP删除MysqL数据库的重复记录
*
* @param
* @author 编程之家 jb51.cc jb51.cc
**/
set_time_limit(13600); //设置时间，PHP删除MysqL数据库的重复记录
$conn=MysqL_connect('localhost','root',''); //连接数据库
MysqL_select_db('shuju',$conn);
MysqL_query("set names 'gbk'");
$query = MysqL_query("select min(id) as mid from taobaoguanjianci group by title");
while($row = MysqL_fetch_array($query))
{
MysqL_query("INSERT into taobaoguanjiancitmp select id,cid,title,cat,level3,cname from taobaoguanjianci where id=$row[mid]");
}
?>