php 解决旧系统 查出所有数据分页的类

<?php
/* 分页类
* @author xiaojiong & 290747680@qq.com
* @date 2011-08-17
*
* show(2) 1 ... 62 63 64 65 66 67 68 ... 150
* 分页样式
* #page{font:12px/16px arial}
* #page span{float:left;margin:0px 3px;}
* #page a{float:left;margin:0 3px;border:1px solid #ddd;padding:3px 7px; text-decoration:none;color:#666}
* #page a.now_page,#page a:hover{color:#fff;background:#05c}
*/
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;
public $plus = 3; //分页偏移量
protected $url;
public function get_page_result()
{
$lastResult = array();
$skipCount = $this->get_skip_row_count();
if(mysql_num_rows($result)>0)
{
mysql_data_seek($result,$skipCount);
}
$pageSize = $this->$list_rows;
while($row = mysql_fetch_array($result))
{
$pageSize --;
$lastResult[] = $row;
if($pageSize == 0)
{
break ;
}
}
return $lastResult;
}
public function get_skip_row_count()
{
return $this->list_rows*($this->now_page-1);
}
/**
* 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] : ;
$this->method = !empty($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:
$url = str_replace(?, $page,$this->parameter);
return <a href=" .$url . "> . $text . </a> . "\n";
break;
default:
return <a href=" . $this->_get_url($page) . "> . $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;
$parse = parse_url($url);
if(isset($parse[query])) {
parse_str($parse[query],$params);
unset($params[$this->page_name]);
$url = $parse[path].?.http_build_query($params);
}
if(!empty($params))
{
$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;
$classNames = get_class_methods($this);
if(in_array($className, $classNames))
{
return $this->$className();
}
return ;
}
protected function show_2()
{
if($this->total_pages != 1)
{
$return = ;
$return .= $this->up_page(<);
for($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(>);
return $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_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;
}
}
?>