php分页功能简记

<?php

class Paging{
private $pageNow;
private $page_whole;
private $pageShowMore;
private $pageCount;
private $pagesShow;

/**
*
* @param 当前页 $pageNow
* @param 超链接数量 $page_whole
* @param 总共多少页 $pageCount
*/
public function __construct($pageNow,$page_whole,$pageCount){
$this->pageNow=$pageNow;
$this->page_whole=$page_whole;
$this->pageShowMore=ceil($this->pageNow/$this->page_whole)*$this->page_whole;
$this->pageCount=$pageCount;
}

public function Show(){
$this->ShowStratPage();
$this->ShowLastPage();
$this->ShowFrontPages();
$this->ShowPages();
$this->ShowBackPages();
$this->ShowNextPage();
$this->ShowEndPage();
$this->ShowPageInfo();
return $this->pagesShow;
}

private function ShowFrontPages(){
if($this->pageNow>$this->page_whole){
$Mpage=$this->pageShowMore+1-$this->page_whole*2;
$this->pagesShow['frontPages']="  <a href='?page={$Mpage}'><<</a>  ";
}
}

private function ShowBackPages(){
$test=floor($this->pageCount/$this->page_whole)*$this->page_whole;
if($this->pageNow<=$test){
$Mpage=$this->pageShowMore+1;
$this->pagesShow['backPages']="  <a href='?page={$Mpage}'>>></a>  ";
}
}

private function ShowStratPage(){
$this->pagesShow['start']="<a href='?page=1'>首页</a>  ";
}

private function ShowEndPage(){
$this->pagesShow['end']="<a href='?page=".$this->pageCount."'>尾页</a>  ";
}

private function ShowLastPage(){
if($this->pageNow>1){
$t=$this->pageNow-1;
$this->pagesShow['lastPage']="<a href='?page=".$t."'>上一页</a>  ";
}
}

private function ShowNextPage(){
if($this->pageNow<$this->pageCount){
$t=$this->pageNow+1;
$this->pagesShow['nextPage']="<a href='?page=".$t."'>下一页</a>  ";
}
}

private function ShowPages(){
$str="";
for ($i=$this->pageShowMore-$this->page_whole+1;$i<=$this->pageShowMore;$i++){
$str.= " <a href='?page={$i}'>{$i}</a> ";
if($i==$this->pageCount){
break;
}
}
$this->pagesShow['showPages']=$str;
}

private function ShowPageInfo(){
$this->pagesShow['Info']="当前第<span style='color:red'>{$this->pageNow}</span>页/共有{$this->pageCount}页";
}
}

?>