Pages3.class.php
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<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2009 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// | lanfengye <zibin_5257@163.com>
// +----------------------------------------------------------------------
class Pages {
// 分页栏每页显示的页数
protected $rollPage = 5;
// 页数跳转时要带的参数
protected $parameter ;
// 分页URL地址
protected $url = '';
// 默认列表每页显示行数
public $listRows = 20;
// 起始行数
protected $firstRow ;
// 分页总页面数
public $totalPages ;
// 总行数
public $totalRows ;
// 当前页数
public $nowPage ;
// 分页的栏的总页数
protected $coolPages ;
// 分页显示定制
// public $config = array('header'=>'条记录','prev'=>'上一页','next'=>'下一页','first'=>'第一页','last'=>'最后一页','theme'=>' %totalRow% %header% %nowPage%/%totalPage% 页 %prePage% %nextPage% %first% %linkPage% %nextPage% %end%');
public $config = array(
'header'=> '共 %totalRows% 条记录',
'pages' => '共 %totalPages% 页',
'first' => '首页',
'prev' => '上一页',
'next' => '下一页',
'last' => '尾页',
'theme' => '%header% %nowPage% %first% %prePage% %linkPage% %nextPage% %end% %pages%',
);
// 默认分页变量名
protected $varPage;
/**
* 架构函数
* @access public
* @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,$listRows='',$parameter='',$url='') {
$this->totalRows = $totalRows;
$this->parameter = $parameter;
$this->varPage = C('VAR_PAGE') ? C('VAR_PAGE') : 'p' ;
if(!empty($listRows)) {
$this->listRows = intval($listRows);
}
$this->totalPages = ceil($this->totalRows/$this->listRows); //总页数
$this->coolPages = ceil($this->totalPages/$this->rollPage);
$this->nowPage = !empty($_GET[$this->varPage])?intval($_GET[$this->varPage]):1;
if($this->nowPage<1){ //页数不能小于1
$this->nowPage = 1;
}elseif(!empty($this->totalPages) && $this->nowPage>$this->totalPages) { //页数不能大于总页数
$this->nowPage = $this->totalPages;
}
$this->firstRow = $this->listRows*($this->nowPage-1);
if(!empty($url)){
$this->url = $url;
}
}
/**
* 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;
}
}
/**
* 分页显示输出
* @access public
*/
public function show() {
if(0 == $this->totalRows) return '';
$p = $this->varPage;
$nowCoolPage = ceil($this->nowPage/$this->rollPage);
// 分析分页参数
if($this->url){
$depr = C('URL_PATHINFO_DEPR');
$this->url = rtrim(U('/'.$this->url,'',false),$depr).$depr.'__PAGE__';
}else{
if($this->parameter && is_string($this->parameter)){
parse_str($this->parameter,$parameter);
}elseif(is_array($this->parameter)){
$parameter = $this->parameter;
}elseif(empty($this->parameter)){
unset($_GET[C('VAR_URL_PARAMS')]);
$var = !empty($_POST)?$_POST:$_GET;
if(empty($var)) {
$parameter = array();
}else{
$parameter = $var;
}
}
$parameter[$p] = '__PAGE__'; //url中的$p参数值处理为__PAGE__
$this->url = U('',$parameter);
}
//上一页
$upRow = $this->nowPage-1;
/*$pp_upRow= $upRow > 0 ? $upRow : 1;
$prePage = '<a href="'.str_replace('__PAGE__',$pp_upRow,$this->url).'">'.$this->config['prev'].'</a>';*/
$prePage = $upRow > 0 ? '<li><a href="'.str_replace('__PAGE__',$upRow,$this->url).'">'.$this->config['prev'].'</a></li>' : '';
//下一页
$downRow = $this->nowPage+1;
/*$pp_downRow = $downRow <= $this->totalPages ? $downRow : $this->totalPages;
$nextPage = '<a href="'.str_replace('__PAGE__',$pp_downRow,$this->url).'">'.$this->config['next'].'</a>';*/
$nextPage = $downRow <= $this->totalPages ? '<li><a href="'.str_replace('__PAGE__',$downRow,$this->url).'">'.$this->config['next'].'</a></li>' : '';
/* 计算分页临时变量 */
$now_cool_page = $this->rollPage/2;
$now_cool_page_ceil = ceil($now_cool_page);
//第一页
$theFirst = '';
if($this->totalPages > $this->rollPage && ($this->nowPage - $now_cool_page) >= 1){
$theFirst = '<li><a class="first" href="'.str_replace('__PAGE__',1,$this->url).'">' . $this->config['first'] . '</a></li>';
}
//最后一页
$theEnd = '';
if($this->totalPages > $this->rollPage && ($this->nowPage + $now_cool_page) < $this->totalPages){
$theEnd = '<li><a class="end" href="' .str_replace('__PAGE__',$this->totalPages,$this->url). '">' . $this->config['last'] . '</a></li>';
}
//数字连接
$linkPage = "";
for($i=1;$i<=$this->rollPage;$i++){
$page = ($nowCoolPage-1)*$this->rollPage+$i;
if($page!=$this->nowPage){
if($page<=$this->totalPages){
$linkPage .= "<li><a href='".str_replace('__PAGE__',$page,$this->url)."'>".$page."</a></li>";
}else{
break;
}
}else{
if($this->totalPages != 1){
$linkPage .= '<li class="ye"><a href="javascript:void(0);" class="current">'.$page.'</a></li>';
}
}
}
$pageStr = str_replace(
array('%header%','%pages%','%totalRows%','%totalPages%','%nowPage%','%prePage%','%nextPage%','%first%','%linkPage%','%end%'),
array($this->config['header'],$this->config['pages'],$this->totalRows,$this->totalPages,$this->nowPage,$prePage,$nextPage,$theFirst,$linkPage,$theEnd),$this->config['theme']);
return $pageStr;
}
}