php實現mysql資料庫隨機重排例子

程式碼

代碼如下

複製代碼

<? //資料庫連接就不寫在這裡面了 $s = isset( $_GET['s'] )?$_GET['s']:0; $e = isset( $_GET['e'])?$_GET['e']:50; $count =85000; if( $s < $count ) {  $sql = "select * from 表首碼_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'];   $sql = "insert into 表首碼_info_bak (id,表首碼,typeid,isget) values('$id','$sss','$typeid','$isget')";   mysql_query( $sql ) ;   echo $sql;   //exit;   $sqlu = "update 表首碼_info set isget=1 where id =".$rs['id'];   mysql_query( $sqlu );  }  echo '<meta http-equiv="refresh" content="0;url=rand.php?s='.($s+50).'&e=50">正在處理資料，當前為'.$s.'條．．．．．．'; } else {  echo '完成所有資料處理 <a href=rand.php>再隨機排序一次</a>'; } ?>