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。";
}