php 通过CheckBox删除选中记录

/*
php 通过CheckBox删除选中记录
*/

if ($_POST['Submit'])
{
$delete=$_POST['delete'];
$aryid=@implode(",",$delete);
$sql="delete from `customer` where `cus_id` in ($aryid)";
/* echo $sql;
   exit();*/
$db2->query($sql);
$result="删除用户成功。";
}