<html> <head> <meta http-equiv="CONTENT-TYPE" content="text/html;"> </head> <body> <?php /** 1.传入页面 **/ $page = $_GET['p']; /** 2.根据页面取出数据:php->mysql **/ $host = "localhost"; $username = 'root'; $password = '123456789'; $db = 'bbs2'; $PageSize=5; //连接数据库 $conn = mysql_connect($host, $username, $password); if(!$conn){ echo "数据库连接失败"; exit; } //选择所要操作的数据库 mysql_select_db($db); //设置数据库编码格式 mysql_query('SET NAMES UTF8'); //编写sql获取分页数据:SELECT * FROM 表名 LIMIT 起始位置 , 显示条数 $sql = "SELECT*FROM test LIMIT ".($page-1)*$PageSize .",$PageSize"; if(!$sql){ echo "取出不成功"; }; //把sql语句传送到数据库 $result = mysql_query($sql); //处理我们的数据 echo "<table border=1 cellspacing=0 width=15% >"; echo "<tr><td>ID</td><td>名字</td><td>性别</td></tr>"; while($row = mysql_fetch_assoc($result)){ echo "<tr>"; echo "<td>{$row['id']}</td>"; echo "<td>{$row['name']}</td>"; echo "<td>{$row['sex']}</td>"; echo "<tr>"; } //释放结果 mysql_free_result($result); //获取数据总数 $to_sql="SELECT COUNT(*)FROM test"; $to_result=mysql_fetch_array(mysql_query($to_sql)); $to=$to_result[0]; //计算页数 $to_pages=ceil($to/$PageSize); mysql_close($conn); /** 3.显示数据+分页条 **/ $page_banner=""; //计算偏移量 if($page>1){ $page_banner.="<a href='".$_SERVER['PHP_SELF']."?p=1'>首页</a>"; $page_banner.="<a href='".$_SERVER['PHP_SELF']."?p=".($page-1)."'>上一页</a>"; } if ($page<$to_pages){ $page_banner.="<a href='".$_SERVER['PHP_SELF']."?p=".($page+1)."'>下一页</a>"; $page_banner.="<a href='".$_SERVER['PHP_SELF']."?p=".($to_pages)."'>尾页</a>"; } $page_banner.="共{$to_pages}页"; echo $page_banner; ?> </body> </html>
By adding the first and last pages, it makes it easier to jump to the paging bar
Code explanation:
if($page>1){ $page_banner.="<a href='".$_SERVER['PHP_SELF']."?p=1'>首页</a>"; $page_banner.="<a href='".$_SERVER['PHP_SELF']."?p=".($page-1)."'>上一页</a>"; }
Displayed when $page>1 Home page and previous page
if ($page<$to_pages){ $page_banner.="<a href='".$_SERVER['PHP_SELF']."?p=".($page+1)."'>下一页</a>"; $page_banner.="<a href='".$_SERVER['PHP_SELF']."?p=".($to_pages)."'>尾页</a>"; }
When the number of pages is less than the total number of pages, display the next and last page
$page_banner.="共{$to_pages}页"; echo $page_banner;
Output the total number of pages.