php列表分页

Ⅰ php怎么制作分页

方法/步骤

首先要了解下分页的原理即
SELECT * FROM table …… limit 开始位置 , 操作条数
开始位置从0开始
SELECT * FROM table …… limit 0 , 20
取最前面20条
SELECT * FROM table …… limit 10 , 20
11条到20条
其次分页要用的公式
得到公式
(当前页数 - 1 )X 每页条数 , 每页条数
Select * from table limit ($Page- 1) * $PageSize, $PageSize

还要了解parse_url()解析URL函数
parse_url() 是讲URL解析成有固定键值的数组的函数
$ua=parse_url("http://username:password@hostname/path?arg=value#anchor");
print_r($ua);
结果:
Array
(
[scheme] => http
[host] => hostname
[user] => username
[pass] => password
[path] => /path
[query] => arg=value
[fragment] => anchor
)

创建数据库bbs和表test有
CREATE TABLE `test` (
`id` int(11) NOT NULL auto_increment,
`name` varchar(50) character set gb2312 NOT NULL,
`sex` varchar(2) character set gb2312 NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=11 ;
然后插入十几条测试数据即可

写mysql数据库连接代码保存conn.php文件里
代码如下
<?php
$conn = @ mysql_connect("localhost", "root", "") or die("数据库链接错误");
mysql_select_db("bbs", $conn);
mysql_query("set names 'GBK'"); //使用GBK中文编码;
function htmtocode($content) {
$content = str_replace("\n", "<br>", str_replace(" ", " ", $content));
return $content;
}
//$content=str_replace("'","'",$content);
//htmlspecialchars();
?>

写分页函数page.php
代码如下
<?php
function _PAGEFT($totle, $displaypg = 20, $url = '') {
global $page, $firstcount, $pagenav, $_SERVER;
$GLOBALS["displaypg"] = $displaypg;
if (!$page)
$page = 1;
if (!$url) {
$url = $_SERVER["REQUEST_URI"];
}
//URL分析:
$parse_url = parse_url($url);
$url_query = $parse_url["query"]; //单独取出URL的查询字串
if ($url_query) {
$url_query = ereg_replace("(^|&)page=$page", "", $url_query);
$url = str_replace($parse_url["query"], $url_query, $url);
if ($url_query)
$url .= "&page";
else
$url .= "page";
} else {
$url .= "?page";
}
$lastpg = ceil($totle / $displaypg); //最后页,也是总页数
$page = min($lastpg, $page);
$prepg = $page -1; //上一页
$nextpg = ($page == $lastpg ? 0 : $page +1); //下一页
$firstcount = ($page -1) * $displaypg;
//开始分页导航条代码:
$pagenav = "显示第 <B>" . ($totle ? ($firstcount +1) : 0) . "</B>-<B>" . min($firstcount + $displaypg, $totle) . "</B> 条记录,共 $totle 条记录";
//如果只有一页则跳出函数:
if ($lastpg <= 1)
return false;
$pagenav .= " <a href='$url=1'>首页</a> ";
if ($prepg)
$pagenav .= " <a href='$url=$prepg'>前页</a> ";
else
$pagenav .= " 前页 ";
if ($nextpg)
$pagenav .= " <a href='$url=$nextpg'>后页</a> ";
else
$pagenav .= " 后页 ";
$pagenav .= " <a href='$url=$lastpg'>尾页</a> ";
//下拉跳转列表,循环列出所有页码:
$pagenav .= " 到第 <select name='topage' size='1' onchange='window.location=\"$url=\"+this.value'>\n";
for ($i = 1; $i <= $lastpg; $i++) {
if ($i == $page)
$pagenav .= "<option value='$i' selected>$i</option>\n";
else
$pagenav .= "<option value='$i'>$i</option>\n";
}
$pagenav .= "</select> 页,共 $lastpg 页";
}
include("conn.php");
$result=mysql_query("SELECT * FROM `test`");
$total=mysql_num_rows($result);
//调用pageft(),每页显示10条信息(使用默认的20时,可以省略此参数),使用本页URL(默认,所以省略掉).
_PAGEFT($total,5);
echo $pagenav;
$result=mysql_query("SELECT * FROM `test` limit $firstcount,$displaypg ");
while($row=mysql_fetch_array($result)){
echo "<hr><b>".$row[name]." | ".$row[sex];
}
?>
调用数据和分页list.php
<?php
/**
* 爱微网 www.iiwnet.com/php/
*/
include("conn.php");
$pagesize=5;
$url=$_SERVER["REQUEST_URI"];
$url=parse_url($url);
$url=$url[path];
$numq=mysql_query("SELECT * FROM `test`");
$num = mysql_num_rows($numq);
if($_GET[page]){
$pageval=$_GET[page];
$page=($pageval-1)*$pagesize;
$page.=',';
}
if($num > $pagesize){
if($pageval<=1)$pageval=1;
echo "共 $num 条".
" <a href=$url?page=".($pageval-1).">上一页</a> <a href=$url?page=".($pageval+1).">下一页</a>";
}
echo $SQL="SELECT * FROM `test` limit $page $pagesize ";
$query=mysql_query($SQL);
while($row=mysql_fetch_array($query)){
echo "<hr><b>".$row[name]." | ".$row[sex];
}
?>

注意事项

注意分页公式写法你只要记住即可；
(当前页数 - 1 )X 每页条数 , 每页条数；
Select * from table limit ($Page- 1) * $PageSize, $PageSize；
注意三个代码文件在同一个目录下；
主要是最后的list.php调用代码要细看很有用。

Ⅱ php文章列表分页问题

给你个分页类吧，这个好用．也简单.
//文件名Page.class.php

<?php
class Pager{
/**
*int总页数
**/
protected $pageTotal;
/**
*int上一页
**/
protected $previous;
/**
*int下一页
**/
protected $next;
/**
*int中间页起始序号
**/
protected $startPage;
/**
*int中间页终止序号
**/
protected $endPage;
/**
*int记录总数
**/
protected $recorbTotal;
/**
*int每页显示记录数
**/
protected $pageSize;
/**
*int当前显示页
**/
protected $currentPage;
/**
*string基url地址
**/
protected $baseUri;

/**
*@returnstring获取基url地址
*/
public function getBaseUri(){
return $this->baseUri;
}

/**
*@returnint获取当前显示页
*/
public function getCurrentPage(){
return $this->currentPage;
}

/**
*@returnint获取每页显示记录数
*/
public function getPageSize(){
return $this->pageSize;
}

/**
*@returnint获取记录总数
*/
public function getRecorbTotal(){
return$this->recorbTotal;
}

/**
*@paramstring$baseUri设置基url地址
*/
public function setBaseUri($baseUri){
$this->baseUri=$baseUri;
}

/**
*@paramint$currentPage设置当前显示页
*/
public function setCurrentPage($currentPage){
$this->currentPage=$currentPage;
}

/**
*@paramint$pageSize设置每页显示记录数
*/
public function setPageSize($pageSize){
$this->pageSize=$pageSize;
}

/**
*@paramint$recorbTotal设置获取记录总数
*/
public function setRecorbTotal($recorbTotal){
$this->recorbTotal=$recorbTotal;
}

/**
*构造函数
**/
public function __construct()
{
$this->pageTotal=0;
$this->previous=0;
$this->next=0;
$this->startPage=0;
$this->endPage=0;

$this->pageSize=20;
$this->currentPage=0;
}

/**
*分页算法
**/
private function arithmetic(){
if($this->currentPage<1)
$this->currentPage=1;

$this->pageTotal=floor($this->recorbTotal/$this->pageSize)+($this->recorbTotal%$this->pageSize>0?1:0);

if($this->currentPage>1&&$this->currentPage>$this->pageTotal)
header('location:'.$this->baseUri.'page='.$this->pageTotal);

$this->next=$this->currentPage+1;
$this->previous=$this->currentPage-1;

$this->startPage=($this->currentPage+5)>$this->pageTotal?$this->pageTotal-10:$this->currentPage-5;
$this->endPage=$this->currentPage<5?11:$this->currentPage+5;

if($this->startPage<1)
$this->startPage=1;

if($this->pageTotal<$this->endPage)
$this->endPage=$this->pageTotal;
}

/**
*分页样式
**/

protected function pageStyle(){
$result="共".$this->pageTotal."页";

if($this->currentPage>1)
$result.="<a href=\"".$this->baseUri."page=1\">第1页</a> <a href=\"".$this->baseUri."page=$this->previous\">前一页</a>";
else
$result.="第1页";

for($i=$this->startPage;$i<=$this->endPage;$i++){
if($this->currentPage==$i)
$result.="$i";
else
$result.=" <a href=\"".$this->baseUri."page=$i\">$i</a> ";
}

if($this->currentPage!=$this->pageTotal){
$result.="<a href=\"".$this->baseUri."page=$this->next\">后一页</a>";
$result.="<a href=\"".$this->baseUri."page=$this->pageTotal\">最后1页</a>";
}else{
$result.="最后1页";
}
return $result;
}

/**
*执行分页
**/
public function execute(){
if($this->baseUri!=""&&$this->recorbTotal==0)
return"";
$this->arithmetic();
return $this->pageStyle();
}
}
?>
//上边是类

//在HTML中调用方法
//先查出数据库中的总合
<?php
require("../inc/conn.php");
include_once("../js/Pager.class.php");
$sql="select * from content order by id desc";
$rs = mysql_query($sql);
$pager = new Pager();
$pageno = $_GET["page"];
if ($pageno == "")
{
$pageno = 1;
}
$pagesize = 10;
$startno = ($pageno-1) * $pagesize;
$recordcount = mysql_num_rows($rs);
$sql = "select * from content order by id desc limit $startno,$pagesize";
$rs = mysql_query($sql);
//$count=mysql_num_rows($rs);
$i = 1;
while($rows = mysql_fetch_assoc($rs))
{
//这里边是循环体，不用说应该知道吧
}
//这底下的执行分页
<?php
if(isset($_GET['page']))
{
$pager->setCurrentPage($_GET["page"]);
}
else
{
$pager->setCurrentPage(1);
}
$pager->setPageSize($pagesize);
$pager->setRecorbTotal($recordcount);
$pager->setBaseUri("news.php?");
echo $pager->execute();
?>