删除或修改多条记录的简便方法

<?
if($_POST['submit']){
  $ids=implode(',',$_POST['ids']);
	//print_r($ids);
	$sql="update `table` set `display`='0' where `id` in(".$ids.")";
	echo $sql;
	}
?>

<form method="post">
<input type="text" value="1" name="ids[]" />
<input type="text" value="2" name="ids[]" />
<input type="submit"  value="submit" name="submit"/>
</form>

　输出结果：update `table` set `display`='0' where `id` in(1,2dd)