查询时用到的：
$pagesize=20; //每页显示数量
if($_POST["pageid"]){
if($_POST["form1"]){
$pageval=1;
}else{
$pageval=$_POST["pageid"];
}
$pageid=($pageval-1)*$pagesize;
$pageid.=',';
}
if($_GET["p"]){
$pageval=$_GET["p"];
$pageid=($pageval-1)*$pagesize;
$pageid.=',';
}
sql:
$sql="select * from table order by addtime desc limit $pageid $pagesize";
使用方法：
<?php
//分页类调用
require("inc/page.class.php");
'total_rows'=>$Num, //信息总数
'method'=>'get', //方法
'ajax_func_name'=>'goToPage',
'now_page'=>$pageval, //当前页
'list_rows'=>$pagesize, //分页显示条数
);
$page = new Core_Lib_Page($params);
echo $page->show(2);
?>
page.class.php源代码：（打包要积分下载）
<?php
/**
* PHP分页类
* 有四种分页样式：可调用show(1);show(2);show(3);show(4);查看
* 分页样式可灵活使用自定义多种样式
*/
class Core_Lib_Page
{
public $first_row; //起始行数
public $list_rows; //列表每页显示行数
protected $total_pages; //总页数
protected $total_rows; //总行数
protected $now_page; //当前页数
protected $method = 'defalut'; //处理情况 ajax分页 html分页(静态化时) 普通get方式
protected $parameter = '';
protected $page_name; //分页参数的名称
protected $ajax_func_name; //ajax分页下的方法名称
public $plus = 3; //分页偏移量
protected $url;
/**
* 构造函数
* @param unknown_type $data
*/
public function __construct
($data = array()) {
$this->total_rows = $data['total_rows'];
$this->parameter = !empty($data['parameter']) ?
$data['parameter'] : ''; $this->list_rows = !empty($data['list_rows']) && $data['list_rows'] <= 100 ?
$data['list_rows'] : 15; $this->total_pages = ceil($this->total_rows / $this->list_rows); $this->page_name = !empty($data['page_name']) ?
$data['page_name'] : 'p'; $this->ajax_func_name = !empty($data['ajax_func_name']) ?
$data['ajax_func_name'] : ''; $this->getsession = $data['getsession'];
$this->method = !empty($data['method']) ?
$data['method'] : '';
/* 当前页面 */
if(!empty($data['now_page'])) {
$this->now_page = intval($data['now_page']); }else{
$this->now_page = !empty($_GET[$this->page_name]) ?
intval($_GET[$this->page_name]):1; }
$this->now_page = $this->now_page <= 0 ? 1 : $this->now_page;
if(!empty($this->total_pages) && $this->now_page > $this->total_pages) {
$this->now_page = $this->total_pages;
}
$this->first_row = $this->list_rows * ($this->now_page - 1);
}
/**
* 得到当前连接
* @param $page
* @param $text
* @return string
*/
protected function _get_link($page,$text)
{
switch ($this->method) {
case 'ajax':
$parameter = '';
if($this->parameter)
{
$parameter = ','.$this->parameter;
}
return '<a onclick="' . $this->ajax_func_name . '(\'' . $page . '\''.$parameter.')" href="javascript:void(0)">' . $text . '</a>' . "\n";
break;
case 'html':
return '<a href="' .$url . '">' . $text . '</a>' . "\n";
break;
default:
return '<a href="' . $this->_get_url($page) . $this->getsession . '">' . $text . '</a>' . "\n";
break;
}
}
/**
* 设置当前页面链接
*/
protected function _set_url()
{
$url = $_SERVER['REQUEST_URI'].(strpos($_SERVER['REQUEST_URI'],'?')?
'':"?").$this->parameter; if(isset($parse['query'])) { unset($params[$this->page_name]); }
{
$url .= '&';
}
$this->url = $url;
}
/**
* 得到$page的url
* @param $page 页面
* @return string
*/
protected function _get_url($page)
{
if($this->url === NULL)
{
$this->_set_url();
}
// $lable = strpos('&', $this->url) === FALSE ? '' : '&';
return $this->url . $this->page_name . '=' . $page;
}
/**
* 得到第一页
* @return string
*/
public function first_page($name = '第一页')
{
if($this->now_page > 5)
{
return $this->_get_link('1', $name);
}
return '';
}
/**
* 最后一页
* @param $name
* @return string
*/
public function last_page($name = '最后一页')
{
if($this->now_page < $this->total_pages - 5)
{
return $this->_get_link($this->total_pages, $name);
}
return '';
}
/**
* 上一页
* @return string
*/
public function up_page($name = '上一页')
{
if($this->now_page != 1)
{
return $this->_get_link($this->now_page - 1, $name);
}
return '';
}
/**
* 下一页
* @return string
*/
public function down_page($name = '下一页')
{
if($this->now_page < $this->total_pages)
{
return $this->_get_link($this->now_page + 1, $name);
}
return '';
}
/**
* 分页样式输出
* @param $param
* @return string
*/
public function show($param = 1)
{
if($this->total_rows < 1)
{
return '';
}
$className = 'show_' . $param;
{
return $this->$className();
}
return '';
}
protected function show_1()
{
$plus = $this->plus;
if( $plus + $this->now_page > $this->total_pages)
{
$begin = $this->total_pages - $plus * 2;
}else{
$begin = $this->now_page - $plus;
}
$begin = ($begin >= 1) ? $begin : 1;
$return = '';
$return .= $this->first_page();
$return .= $this->up_page();
for ($i = $begin; $i <= $begin + $plus * 2;$i++)
{
if($i>$this->total_pages)
{
break;
}
if($i == $this->now_page)
{
$return .= "<a class='now_page'>$i</a>\n";
}
else
{
$return .= $this->_get_link($i, $i) . "\n";
}
}
$return .= $this->down_page();
$return .= $this->last_page();
return $return;
}
protected function show_2()
{
if($this->total_pages != 1)
{
$return = '';
$return .= '<div class="pagetxt">共<b> ' .$this->total_pages. ' </b>页 当前第<b> ' .$this->now_page. ' </b>页, 共有记录<b> ' .$this->total_rows. ' </b>条</div><div class="pagea">';
$return .= $this->up_page('上一页');
for($i = 1;$i<=$this->total_pages;$i++)
{
if($i == $this->now_page)
{
$return .= "<a class='now_page'>$i</a>\n";
}
else
{
if($this->now_page-$i>=4 && $i != 1)
{
$return .="<span class='pageMore'>...</span>\n";
$i = $this->now_page-3;
}
else
{
if($i >= $this->now_page+5 && $i != $this->total_pages)
{
$return .="<span>...</span>\n";
$i = $this->total_pages;
}
$return .= $this->_get_link($i, $i) . "\n";
}
}
}
$return .= $this->down_page('下一页');
$return .= '</div>';
return $return;
}
}
protected function show_3()
{
$plus = $this->plus;
if( $plus + $this->now_page > $this->total_pages)
{
$begin = $this->total_pages - $plus * 2;
}else{
$begin = $this->now_page - $plus;
}
$begin = ($begin >= 1) ? $begin : 1;
$return = '总计 ' .$this->total_rows. ' 个记录分为 ' .$this->total_pages. ' 页, 当前第 ' . $this->now_page . ' 页 ';
$return .= ',每页 ';
$return .= '<input type="text" value="'.$this->list_rows.'" id="pageSize" size="3"> ';
$return .= $this->first_page()."\n";
$return .= $this->up_page()."\n";
$return .= $this->down_page()."\n";
$return .= $this->last_page()."\n";
$return .= '<select onchange="'.$this->ajax_func_name.'(this.value)" id="gotoPage">';
for ($i = $begin;$i<=$begin+10;$i++)
{
if($i>$this->total_pages)
{
break;
}
if($i == $this->now_page)
{
$return .= '<option selected="true" value="'.$i.'">'.$i.'</option>';
}
else
{
$return .= '<option value="' .$i. '">' .$i. '</option>';
}
}
$return .= '</select>';
return $return;
}
protected function show_4()
{
$plus = $this->plus;
if( $plus + $this->now_page > $this->total_pages)
{
$begin = $this->total_pages - $plus * 2;
}else{
$begin = $this->now_page - $plus;
}
$begin = ($begin >= 1) ? $begin : 1;
$return = '';
$return .= '<div class="pagetxt">共<b> ' .$this->total_pages. ' </b>页 当前第<b> ' .$this->now_page. ' </b>页, 共有记录<b> ' .$this->total_rows. ' </b>条</div><div class="pagea">';
$return .= $this->first_page();
$return .= $this->up_page();
for ($i = $begin; $i <= $begin + $plus * 2;$i++)
{
if($i>$this->total_pages)
{
break;
}
if($i == $this->now_page)
{
$return .= "<a class='now_page'>$i</a>\n";
}
else
{
$return .= $this->_get_link($i, $i) . "\n";
}
}
$return .= $this->down_page();
$return .= $this->last_page();
$return .= '</div>';
return $return;
}
}
?>