Page.class.php
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<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006-2014 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: 麦当苗儿 <zuojiazi@vip.qq.com> <http://www.zjzit.cn>
// +----------------------------------------------------------------------
namespace Think;
class Page
{
public $firstRow; // 起始行数
public $listRows; // 列表每页显示行数
public $parameter; // 分页跳转时要带的参数
public $totalRows; // 总行数
public $totalPages; // 分页总页面数
public $rollPage = 11; // 分页栏每页显示的页数
public $lastSuffix = true; // 最后一页是否显示总页数
private $p = 'p'; // 分页参数名
private $url = ''; // 当前链接URL
private $nowPage = 1;
// 分页显示定制
private $config = array(
'header' => '<span class="rows">共 %TOTAL_ROW% 条记录</span>',
'prev' => '<<',
'next' => '>>',
'first' => '1...',
'last' => '...%TOTAL_PAGE%',
'theme' => '%FIRST% %UP_PAGE% %LINK_PAGE% %DOWN_PAGE% %END%'
);
/**
* 架构函数
*
* @param array $totalRows
* 总的记录数
* @param array $listRows
* 每页显示记录数
* @param array $parameter
* 分页跳转的参数
*/
public function __construct($totalRows, $listRows = 20, $parameter = array())
{
C('VAR_PAGE') && $this->p = C('VAR_PAGE'); // 设置分页参数名称
// 基础设置
$this->totalRows = $totalRows; // 设置总记录数
$this->listRows = $listRows; // 设置每页显示行数
$this->parameter = empty($parameter) ? $_GET : $parameter;
$this->nowPage = empty($_GET[$this->p]) ? 1 : intval($_GET[$this->p]);
$this->nowPage = $this->nowPage > 0 ? $this->nowPage : 1;
$this->firstRow = $this->listRows * ($this->nowPage - 1);
}
/**
* 定制分页链接设置
*
* @param string $name
* 设置名称
* @param string $value
* 设置值
*/
public function setConfig($name, $value)
{
if (isset($this->config[$name])) {
$this->config[$name] = $value;
}
}
/**
* 生成链接URL
*
* @param integer $page
* 页码
* @return string
*/
private function url($page)
{
return str_replace(urlencode('[PAGE]'), $page, $this->url);
}
/**
* 组装分页链接
*
* @return string
*/
public function show()
{
if (0 == $this->totalRows) {
return '';
}
// 生成URL
$this->parameter[$this->p] = '[PAGE]';
$this->url = U(ACTION_NAME, $this->parameter);
// 计算分页信息
$this->totalPages = ceil($this->totalRows / $this->listRows); // 总页数
if (! empty($this->totalPages) && $this->nowPage > $this->totalPages) {
$this->nowPage = $this->totalPages;
}
// 计算分页临时变量
$now_cool_page = $this->rollPage / 2;
$now_cool_page_ceil = ceil($now_cool_page);
$this->lastSuffix && $this->config['last'] = $this->totalPages;
// 上一页
$up_row = $this->nowPage - 1;
$up_page = $up_row > 0 ? '<a class="prev" href="' . $this->url($up_row) . '">' . $this->config['prev'] . '</a>' : '';
// 下一页
$down_row = $this->nowPage + 1;
$down_page = ($down_row <= $this->totalPages) ? '<a class="next" href="' . $this->url($down_row) . '">' . $this->config['next'] . '</a>' : '';
// 第一页
$the_first = '';
if ($this->totalPages > $this->rollPage && ($this->nowPage - $now_cool_page) >= 1) {
$the_first = '<a class="first" href="' . $this->url(1) . '">' . $this->config['first'] . '</a>';
}
// 最后一页
$the_end = '';
if ($this->totalPages > $this->rollPage && ($this->nowPage + $now_cool_page) < $this->totalPages) {
$the_end = '<a class="end" href="' . $this->url($this->totalPages) . '">' . $this->config['last'] . '</a>';
}
// 数字连接
$link_page = "";
for ($i = 1; $i <= $this->rollPage; $i ++) {
if (($this->nowPage - $now_cool_page) <= 0) {
$page = $i;
} elseif (($this->nowPage + $now_cool_page - 1) >= $this->totalPages) {
$page = $this->totalPages - $this->rollPage + $i;
} else {
$page = $this->nowPage - $now_cool_page_ceil + $i;
}
if ($page > 0 && $page != $this->nowPage) {
if ($page <= $this->totalPages) {
$link_page .= '<a class="num" href="' . $this->url($page) . '">' . $page . '</a>';
} else {
break;
}
} else {
if ($page > 0 && $this->totalPages != 1) {
$link_page .= '<span class="current">' . $page . '</span>';
}
}
}
// 替换分页内容
$page_str = str_replace(array(
'%HEADER%',
'%NOW_PAGE%',
'%UP_PAGE%',
'%DOWN_PAGE%',
'%FIRST%',
'%LINK_PAGE%',
'%END%',
'%TOTAL_ROW%',
'%TOTAL_PAGE%'
), array(
$this->config['header'],
$this->nowPage,
$up_page,
$down_page,
$the_first,
$link_page,
$the_end,
$this->totalRows,
$this->totalPages
), $this->config['theme']);
return "<div>{$page_str}</div>";
}
}