Home php教程 php手册 php实现mysql数据库随机重排例子

php实现mysql数据库随机重排例子

May 23, 2016 pm 01:07 PM

这个例子是用于一个简单的应用开发了,意思就是把现在表中的所有数据我们随机读出来一次之后再进行随机保存到另一个表,从而达到了记录随机的功能.

程序代码如下:

<?php 
	//数据库连接就不写在这里面了 
	$s = isset( $_GET[&#39;s&#39;] )?$_GET[&#39;s&#39;]:0; 
	$e = isset( $_GET[&#39;e&#39;])?$_GET[&#39;e&#39;]:50; 
	$count =85000; 
	if( $s < $count ) 
	{ 
	 $sql = "select * from 表前缀_info where isget =0 order by id desc limit $s,$e "; 
	 $query = mysql_query( $sql ); 
	 while( $rs = mysql_fetch_array( $query ) ) 
	 { 
	  $id = $rs[&#39;id&#39;]; 
	  $sss = $rs[&#39;sss&#39;]; 
	  $typeid = $rs[&#39;typeid&#39;]; 
	  $isget = $rs[&#39;isget&#39;]; 
	  $sql = "insert into 表前缀_info_bak (id,表前缀,typeid,isget) values(&#39;$id&#39;,&#39;$sss&#39;,&#39;$typeid&#39;,&#39;$isget&#39;)"; 
	  mysql_query( $sql ) ; 
	  echo $sql; 
	  //exit; 
	  $sqlu = "update 表前缀_info set isget=1 where id =".$rs[&#39;id&#39;]; 
	  mysql_query( $sqlu ); 
	 }  
	 echo &#39;<meta http-equiv="refresh" content="0;url=rand.php?s=&#39;.($s+50).&#39;&e=50">正在处理数据,当前为&#39;.$s.&#39;条......&#39;; 
	} 
	else 
	{ 
	 echo &#39;完成所有数据处理 <a href=rand.php>再随机排序一次</a>&#39;; 
	} 
	
Copy after login


本文链接:

收藏随意^^请保留教程地址.

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)