PHP中文网上的分页代码
page.php
<html> <head> <meta http-equiv="CONTENT-TYPE" content="text/html;"> </head> <title>分页</title> <style> div.page{ text-align: center; } div.page a{ border: #aa0027 solid 1px; text-decoration: none; padding: 2px 5px 2px 5px; margin: 2px; } div.page span.current{ border: #000099 1px solid;background-color: #992b6c;padding: 4px 6px 4px 6px;margin: 2px;color: #fff; font-weight: bold; } div.page form{ display: inline; } div.content{ height: 200px; } </style> <body> <?php error_reporting(E_ALL ^ E_DEPRECATED); ?> <?php /** 1.传入页面 **/ $page= isset($_GET['p']) ? trim($_GET['p']) : 1; /** 2.根据页面取出数据:php->mysql **/ $host = "localhost"; $username = 'root'; $password = 'root'; $db = 'test'; $PageSize=5; $ShowPage=3; //连接数据库 $conn = mysqli_connect($host, $username, $password,$db); if(!$conn){ echo "数据库连接失败"; exit; } //编写sql获取分页数据:SELECT * FROM 表名 LIMIT 起始位置 , 显示条数 $sql = "SELECT*FROM user LIMIT ".($page-1)*$PageSize .",$PageSize"; if(! $conn->query($sql)){ echo "取出不成功"; }; //把sql语句传送到数据库 $result = mysqli_query($conn,$sql); //处理我们的数据 echo "<div class='content'>"; echo "<table border=1 cellspacing=0 width=15% align='center'>"; echo "<tr><td>ID</td><td>名字</td><td>密码</td></tr>"; while($row = mysqli_fetch_array($result)){ echo "<tr>"; echo "<td>{$row['id']}</td>"; echo "<td>{$row['name']}</td>"; echo "<td>{$row['pass']}</td>"; echo "<tr>"; } echo "</table>"; echo "</div>"; //释放结果 mysqli_free_result($result); //获取数据总数 $to_sql="SELECT COUNT(*)FROM user"; $to_result=mysqli_fetch_array(mysqli_query($conn,$to_sql)); $to=$to_result[0]; //计算页数 $to_pages=ceil($to/$PageSize); mysqli_close($conn); /** 3.显示数据+分页条 **/ $page_banner="<div class='page'>"; //计算偏移量 $pageffset=($ShowPage-1)/2; 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>"; } //初始化数据 $start=1; $end=$to_pages; if ($to_pages>$ShowPage){ if($page>$pageffset+1){ $page_banner.="..."; } if ($page>$pageffset){ $start=$page-$pageffset; $end=$to_pages>$page+$pageffset?$page+$pageffset:$to_pages; }else{ $start=1; $end=$to_pages>$ShowPage?$ShowPage:$to_pages; } if ($page+$pageffset>$to_pages){ $start=$start-($page+$pageffset-$end); } } for($i=$start;$i<=$end;$i++) { if ($page == $i) { $page_banner .= "<span class='current'>{$i}</span>"; } else { $page_banner .= "<a href='" . $_SERVER['PHP_SELF'] . "?p=" . ($i) . "'>{$i}</a>"; } } //尾部省略 if ($to_pages>$ShowPage&&$to_pages>$page+$pageffset){ $page_banner.="..."; } if ($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"; $page_banner.="<form action='mupage.php' method='get'>"; $page_banner.="到第<input type='text'size='2'name='p'>页"; $page_banner.="<input type='submit'value='确定'>"; $page_banner.="</form></div>"; echo $page_banner; ?> </body> </html>
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- 第一次打开是设置默认当前页为1: $page= isset($_GET['p']) ? trim($_GET['p']) : 1;
- 得到当前网址:$_SERVER['PHP_SELF']
- 当页码过多时,实现了隐藏部分页码的效果