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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 "
}else{
return " 首页n";
}
}
private function myde_prev() //上一页
{
if($this -> myde_page != 1){
return "
}else{
return " 上一页n";
}
}
private function myde_next() //下一页
{
if($this -> myde_page != $this -> myde_page_count){
return "
}else{
return " 下一页n";
}
}
private function myde_last() //尾页
{
if($this -> myde_page != $this -> myde_page_count){
return "
}else{
return " 尾页n";
}
}
function myde_write($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 .= "
}
else{
$str .= "
$str .= $page_for_i . "n";
}
}
$str .= $this -> myde_next();
$str .= $this -> myde_last();
$str .= "
$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
*/
?>