php實現(xiàn)mysql數(shù)據(jù)庫隨機重排例子

    程序代碼
    代碼如下:
    <?
    //數(shù)據(jù)庫連接就不寫在這里面了
    $s = isset( $_get['s'] )?$_get['s']:0;
    $e = isset( $_get['e'])?$_get['e']:50;
    $count =85000;
    if( $s < $count )
    {
    $sql = select * from 表前綴_info where isget =0 order by id desc limit $s,$e ;
    $query = mysql_query( $sql );
    while( $rs = mysql_fetch_array( $query ) )
    {
    $id = $rs['id'];
    $sss = $rs['sss'];
    $typeid = $rs['typeid'];
    $isget = $rs['isget'];
    $sql = insert into 表前綴_info_bak (id,表前綴,typeid,isget) values('$id','$sss','$typeid','$isget');
    mysql_query( $sql ) ;
    echo $sql;
    //exit;
    $sqlu = update 表前綴_info set isget=1 where id =.$rs['id'];
    mysql_query( $sqlu );
    }
    echo '<meta http-equiv=refresh content=0;url=rand.php?s='.($s+50).'&e=50>正在處理數(shù)據(jù)，當前為'.$s.'條．．．．．．';
    }
    else
    {
    echo '完成所有數(shù)據(jù)處理 <a href=rand.php>再隨機排序一次</a>';
    }
    ?>