php实现refresh刷新页面进入批量导入数据

set_time_limit(0);
//连接数据库

$s = isset( $_GET['s'] )?$_GET['s']:0;
$e = isset( $_GET['e'])?$_GET['e']:50;
$count =85000;

if( $s {
$sql = "select * from bac_info where isget =0 order by id desc limit $s,$e ";
$query = mysql_query( $sql );
while( $rs = mysql_fetch_array( $query ) )
{
$id = $rs['id'];
$sms = $rs['sms'];
$typeid = $rs['typeid'];
$isget = $rs['isget'];
$sql = "insert into bac_info_bak (id,sms,typeid,isget) values('$id','$sms','$typeid','$isget')";
mysql_query( $sql ) ;
echo $sql;
//exit;
$sqlu = "update bac_info set isget=1 where id =".$rs['id'];
mysql_query( $sqlu );
}
echo '正在处理数据，当前为'.$s.'条．．．．．．';
}
else
{
echo '完成所有数据处理 ';
}
?>