php简单简洁分页类-PHP源码

php 简单简洁分页类
/**
*-------------------------翻页类----------------------*
*/
class PageClass
{
private $myde_count; //总记录数
var $myde_size; //每页记录数
private $myde_page; //当前页
private $myde_page_count; //总页数
private $page_url; //页面url
private $page_i; //起始页
private $page_ub; //结束页
var $page_limit;

function __construct($myde_count=0, $myde_size=1, $myde_page=1,$page_url)//构造函数
{

$this -> myde_count = $this -> numeric($myde_count);
$this -> myde_size = $this -> numeric($myde_size);
$this -> myde_page = $this -> numeric($myde_page);
$this -> page_limit = ($this -> myde_page * $this -> myde_size) - $this -> myde_size;

$this -> page_url = $page_url;

if($this -> myde_page <1) $this -> myde_page =1;

if($this -> myde_count <0) $this -> myde_page =0;

$this -> myde_page_count = ceil($this -> myde_count/$this -> myde_size);

if($this -> myde_page_count <1) $this -> myde_page_count = 1;

if($this -> myde_page > $this -> myde_page_count) $this -> myde_page = $this -> myde_page_count;

$this -> page_i = $this -> myde_page - 2;

$this -> page_ub = $this -> myde_page + 2;

if($this -> page_i <1){

$this -> page_ub = $this -> page_ub + (1 - $this -> page_i);

$this -> page_i = 1;
}

if($this -> page_ub > $this -> myde_page_count){

$this -> page_i = $this -> page_i - ($this -> page_ub - $this -> myde_page_count);

$this -> page_ub = $this -> myde_page_count;

if($this -> page_i <1) $this -> page_i = 1;
}
}


private function numeric($id) //判断是否为数字
{
if (strlen($id)){
if (!ereg("^[0-9]+$",$id)){
$id = 1;
}else{
$id = substr($id,0,11);
}
}else{
$id = 1;
}
return $id;
}

private function page_replace($page) //地址替换
{
return str_replace("{page}", $page, $this -> page_url);
}


private function myde_home() //首页
{
if($this -> myde_page != 1){

return "

page_replace(1)."" title="首页" >首页

n";

}else{

return "

首页

n";

}
}

private function myde_prev() //上一页
{
if($this -> myde_page != 1){

return "

page_replace($this->myde_page-1) ."" title="上一页" >上一页

n";

}else{

return "

上一页

n";

}
}

private function myde_next() //下一页
{
if($this -> myde_page != $this -> myde_page_count){

return "

page_replace($this->myde_page+1) ."" title="下一页" >下一页

n";

}else{

return "

下一页

n";

}
}

private function myde_last() //尾页
{
if($this -> myde_page != $this -> myde_page_count){

return "

page_replace($this -> myde_page_count)."" title="尾页" >尾页

n";

}else{

return "

尾页

n";

}
}

function myde_write($id='page') //输出
{
$str = "

n

n ";

$str .= "
• 总记录:".$this -> myde_count."
n";

$str .= "
• ".$this -> myde_page."/".$this -> myde_page_count."
n";

$str .= $this -> myde_home();

$str .= $this -> myde_prev();

for($page_for_i = $this -> page_i;$page_for_i <= $this -> page_ub; $page_for_i++){

if($this -> myde_page == $page_for_i){

$str .= "
• ".$page_for_i."
n";

}

else{

$str .= "
• page_replace($page_for_i)."" title="第".$page_for_i."页">";
  
  $str .= $page_for_i . "
n";

}
}
$str .= $this -> myde_next();

$str .= $this -> myde_last();

$str .= "
• myde_page.""";
  
  $str .= " Onkeydown="Javascript: if(event.keyCode==13){ location='";
  
  $str .= $this -> page_replace("'+this.value+'")."';return false;}"";
  
  $str .= " title="输入您想要到达的页码" />
n";

$str .= "

n

n

";

return $str;
}
}
/*-------------------------实例--------------------------------*
$page = new PageClass(1000,5,$_GET['page'],'?page={page}');//用于动态
$page = new PageClass(1000,5,$_GET['page'],'list-{page}.html');//用于静态或者伪静态
$page -> myde_write();//显示
*/
?>