PHP通用分页(Pager)类
三种不同展示方式 附上style~
1. 效果图1
2.效果图2
3. 效果图3
4. 分页类主体
<?php
/**
* PHP通用分页类
* 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 Pager
{
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;
/**
* 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'] : 'page';
$this->ajax_func_name = !empty($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 int $page
* @param string $text
* @return string
*/
protected function _get_link($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>' . "";
break;
case 'html' :
$url = str_replace('?', $page, $this->parameter);
return '<a href="' . $url . '">' . $text . '</a>' . "";
break;
default :
return '<a href="' . $this->_get_url($page) . '">' . $text . '</a>' . "";
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 string $name
* @return string
*/
public function last_page($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
*
* @param string $name
* @return string
*/
public function up_page($name = '上一页')
{
if ($this->now_page != 1)
{
return $this->_get_link($this->now_page - 1, $name);
}
return '';
}
/**
* 下一页
*
* @param sring $name
* @return string
*/
public function down_page($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>";
}
else
{
if ($this->now_page - $i >= 4 && $i != 1)
{
$return .= "<span class='pageMore'>...</span>";
$i = $this->now_page - 3;
}
else
{
if ($i >= $this->now_page + 5 && $i != $this->total_pages)
{
$return .= "<span>...</span>";
$i = $this->total_pages;
}
$return .= $this->_get_link($i, $i) . "";
}
}
}
$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>";
}
else
{
$return .= $this->_get_link($i, $i) . "";
}
}
$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() . "";
$return .= $this->up_page() . "";
$return .= $this->down_page() . "";
$return .= $this->last_page() . "";
$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;
}
}
5.使用方法
###处理html静态化页面分页的情况###
# method 处理环境 设置为 html
# parameter 为静态页面参数 xxx.com/20-0-0-0-40-?.html 注意问号
# ?问号的位置会自动替换为去向页码
# now_page 当前页面(静态页面获取不到当前页面所以只有你传入)
$params = array(
'total_rows'=>100, #(必须)
'method' =>'html', #(必须)
'parameter' =>'xxx.com/20-0-0-0-40-?.html', #(必须)
'now_page' =>$_GET['p'], #(必须)
'list_rows' =>10, #(可选) 默认为15
);
$page = new Pager($params);
echo $page->show(1);
#<a href="xxx.com/20-0-0-0-40-2.html">2</a>
###处理ajax分页的情况###
# method 处理环境 设置为 ajax
# ajax_func_name ajax分页跳转页面的javascript方法
# parameter ajax_func_name后面的附带参数 默认为空
# now_page 不到当前页面所以只有你传入
$params = array(
'total_rows'=>100,
'method' =>'ajax',
'ajax_func_name' =>'goToPage',
'now_page' =>1,
#'parameter' =>"'jiong','username'",
);
$page = new Pager($params);
echo $page->show(1);
#<a href="javascript:void(0)" onclick="goToPage('7')">7</a>
#添加了parameter<a href="javascript:void(0)" onclick="goToPage('6','jiong','username')">6</a>
