php封装分页类+分页实例

分页类的封装如下：

page.php

<?php
//showPage(页号，总页数，分隔符)
function showPage($page,$totalPage,$sep=" "){
    $url = $_SERVER ['PHP_SELF'];           //获取当前路径
    $index = ($page == 1) ? "首页" : "<a href='{$url}?page=1'>首页</a>";
    $last = ($page == $totalPage) ? "尾页" : "<a href='{$url}?page={$totalPage}'>尾页</a>";
    $prevPage=($page>=1)?$page-1:1;
    $nextPage=($page>=$totalPage)?$totalPage:$page+1;
    $prev = ($page == 1) ? "上一页" : "<a href='{$url}?page={$prevPage}'>上一页</a>";
    $next = ($page == $totalPage) ? "下一页" : "<a href='{$url}?page={$nextPage}'>下一页</a>";
    $str = "总共{$totalPage}页/当前是第{$page}页";
    $p="";
    for($i = 1; $i <= $totalPage; $i ++) {
        //当前页无连接
        if ($page == $i) {
            $p .= "[{$i}]";
        } else {
            $p .= "<a href='{$url}?page={$i}'>[{$i}]</a>";
        }
    }
    $pageStr=$str.$sep . $index .$sep. $prev.$sep . $p.$sep . $next.$sep . $last;
    return $pageStr;    //返回分页字符串
}

一个调用分页类的例子

userlist.php

<?php
include "../mysql.php";
include "../page.php";
//连接数据库
$conn=new Mysql();
//
$pageSize=2;        //每页显示的记录数
$sql="select * from user;";
$totalRows=$conn->getResultNum($sql);   //总记录数
$totalPage=ceil($totalRows/$pageSize);  //总页数
$page=isset($_REQUEST['page'])?(int)$_REQUEST['page']:1;//当前页数
if($page<1||$page==null||!is_numeric($page)){
    $page=1;
}
if($page>=$totalPage)$page=$totalPage;
$offset=($page-1)*$pageSize;

$sql="select * from user limit {$offset},{$pageSize}";
$result=$conn->sql($sql);

echo "<table style='text-align: center'>";
echo "<tr><td>用户名</td><td>密码</td><td>性别</td><td>邮箱</td></tr>";
foreach ($result as $k=>$v)
{
    echo "<tr><td>{$v['name']}</td>";
    echo "<td>"."{$v['password']}"."</td>";
    echo "<td>{$v['sex']}</td>";
    echo "<td>{$v['email']}</td></tr>";
}
echo "</table>";
echo showPage($page,$totalPage);        //输出页码链接
echo"<hr/>";

//关闭数据库
$conn->close();

运行结果：

数据库的封装之前写过，这里不在赘述

数据库封装：http://blog.csdn.net/c_jian/article/details/52847499

php封装分页类+分页实例

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