$db=mysql_connect('localhost','xxx','xxx');
//text为可能存在重复的字段名，先用count子句来把TEXT重复的记录的ID拎出来，不全拎，节省资源～
mysql_select_db('vbnew');
$sql="SELECT id, text, count( text )
FROM `dic`
GROUP BY text
HAVING count( text ) >1";
$result=mysql_query($sql)or die("Inva[......]