php访问数据库分页显示

来源：互联网发布：淘宝抢购加入购物车编辑：程序博客网时间：2024/06/06 04:09

1、前言

对于mysql数据库，为便于学习等，新安装的mysql中含有一个叫做world的数据库，该数据库含有一些信息，本文以此为实验素材。本文参考了php经典编程265例。

2、上代码

<?phpclass mysql{var $host;var $user;var $pwd;var $db;var $con;function __construct($host, $user, $pwd, $db){$this->host=$host;$this->user=$user;$this->pwd=$pwd;$this->db=$db;$this->connect();}function connect(){$this->con=mysql_connect($this->host,$this->user,$this->pwd);mysql_select_db($this->db,$this->con);mysql_query("SET NAMES UTF-8");}};?>

<html><head><style>td{text-align:center;}</style></head><body><table width="500px" border="1px" cellpadding="1px" cellspacing="1px" align="center"><caption>CountryLauguage</caption><tr><td width="100px">CountryCode</td><td width="200px">Language</td><td width="100px">Isofficial</td><td width="100px">Percentage</td></tr><?phpinclude("in.php");new mysql("localhost","root","08246298","world");$res=mysql_query("select * from countrylanguage");$sum=mysql_num_rows($res);$perpage=50;$pagesum=ceil($sum/$perpage);if(empty($_GET['page'])){$page=1;}else{$page=$_GET['page'];}$start=($page-1)*$perpage+1;$res=mysql_query("select * from countrylanguage limit ".$start.",".$perpage);while($r=mysql_fetch_row($res)){echo "<tr>";echo "<td width='100px'>$r[0]</td><td width='200px'>$r[1]</td><td width='100px'>$r[2]</td><td width='100px'>$r[3]</td>";echo "</tr>";}?></table><br/><p align="center"><?phpecho "<a href='index.php?page=1'>Head</a>    ";if($page>2){echo "<a href='index.php?page=".($page-1)."'>Pre</a>    ";}if($page<$pagesum-1){echo "<a href='index.php?page=".($page+1)."'>Next</a>    ";}echo "<a href='index.php?page=".$pagesum."'>End</a>    ";?></p></body></html>

3、实验截图

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