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872天前<?php |
class Page { |
private $total; //数据表中总记录数 |
private $listRows; //每页显示行数 |
private $limit; |
private $uri; |
private $pageNum; //页数 |
private $config=array('header'=>"个记录", "prev"=>"上一页", "next"=>"下一页", "first"=>"首 页", "last"=>"尾 页"); |
private $listNum=8; |
/* |
* $total |
* $listRows |
*/ |
public function __construct($total, $listRows=10, $pa=""){ |
$this->total=$total; |
$this->listRows=$listRows; |
$this->uri=$this->getUri($pa); |
$this->page=!empty($_GET["page"]) ? $_GET["page"] : 1; |
$this->pageNum=ceil($this->total/$this->listRows); |
$this->limit=$this->setLimit(); |
} |
private function setLimit(){ |
return "Limit ".($this->page-1)*$this->listRows.", {$this->listRows}"; |
} |
private function getUri($pa){ |
$url=$_SERVER["REQUEST_URI"].(strpos($_SERVER["REQUEST_URI"], '?')?'':"?").$pa; |
echo $url; |
$parse=parse_url($url); |
if(isset($parse["query"])){ |
parse_str($parse['query'],$params); |
unset($params["page"]); |
$url=$parse['path'].'?'.http_build_query($params); |
} |
return $url; |
} |
private function __get($args){ |
if($args=="limit") |
return $this->limit; |
else |
return null; |
} |
private function start(){ |
if($this->total==0) |
return 0; |
else |
return ($this->page-1)*$this->listRows+1; |
} |
private function end(){ |
return min($this->page*$this->listRows,$this->total); |
} |
private function first(){ |
if($this->page==1) |
$html.=''; |
else |
$html.=" <a href="{$this->uri}&page=1">{$this->config["first"]}</a> "; |
return $html; |
} |
private function prev(){ |
if($this->page==1) |
$html.=''; |
else |
$html.=" <a href="{$this->uri}&page='.($this->page-1).'">{$this->config["prev"]}</a> "; |
return $html; |
} |
private function pageList(){ |
$linkPage=""; |
$inum=floor($this->listNum/2); |
for($i=$inum; $i>=1; $i--){ |
$page=$this->page-$i; |
if($page<1) |
continue; |
$linkPage.=" <a href="{$this->uri}&page={$page}">{$page}</a> "; |
} |
$linkPage.=" {$this->page} "; |
for($i=1; $i<=$inum; $i++){ |
$page=$this->page+$i; |
if($page<=$this->pageNum) |
$linkPage.=" <a href="{$this->uri}&page={$page}">{$page}</a> "; |
else |
break; |
} |
return $linkPage; |
} |
private function next(){ |
if($this->page==$this->pageNum) |
$html.=''; |
else |
$html.=" <a href="{$this->uri}&page='.($this->page+1).'">{$this->config["next"]}</a> "; |
return $html; |
} |
private function last(){ |
if($this->page==$this->pageNum) |
$html.=''; |
else |
$html.=" <a href="{$this->uri}&page='.($this->pageNum).'">{$this->config["last"]}</a> "; |
return $html; |
} |
private function goPage(){ |
return ' <input style="WIDTH: 25px" value="'.$this->page.'"><input value="GO" type="button"> '; |
} |
function fpage($display=array(0,1,2,3,4,5,6,7,8)){ |
$html[0]=" 共有<strong>{$this->total}</strong>{$this->config["header"]} "; |
$html[1]=" 每页显示<strong>".($this->end()-$this->start()+1)."</strong>条，本页<strong>{$this->start()}-{$this->end()}</strong>条 "; |
$html[2]=" <strong>{$this->page}/{$this->pageNum}</strong>页 "; |
$html[3]=$this->first(); |
$html[4]=$this->prev(); |
$html[5]=$this->pageList(); |
$html[6]=$this->next(); |
$html[7]=$this->last(); |
$html[8]=$this->goPage(); |
$fpage=''; |
foreach($display as $index){ |
$fpage.=$html[$index]; |
} |
return $fpage; |
} |
} |
