經典php分頁代碼,支持數字偏移

2024-05-04 23:06:51

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這款php分頁代碼是一款完整的php mysql css的經典分頁功能,很適合于大分類有像phpwindow dz等論壇效果.

CSS樣式代碼如下:

<style type="text/css">



</style>

PHP實例效果代碼如下:

<?php

mysql_connect('localhost','root','');

mysql_select_db('news');

mysql_query('set names gbk');

$sql = mysql_query("select * from `v_char`");

$num = mysql_num_rows($sql);

include 'page.class.php';

/*參數說明：

*getpages($pagesize,$pagenum,$page,$init,$page_len);

*$pagesize 每頁記錄

*$pagenum 總記錄數

*$page $_get[page]

*$init 數字分頁最小數，默認為1，一般不用更改。

*$page_len 數字分頁的數量。

*/

$model = new getpages(10,$num,$_get['page']);

$sql = "select * from `v_char` limit $model->offset,$model->pagesize";

$res = mysql_query($sql);

while($row = mysql_fetch_assoc($res))

{

echo $row['id'] . " - " . $row['name'] .'<br>';

}

//輸出分頁信息

echo $model->getpage();

?>

page.class.php

<?php

/*

* author：陳凱

* data：2010-09-14

*/

class getpages

{

public $pagesize;  //每頁記錄

public $offset;    //起始記錄數

public $pagenum;   //總記錄

public $page;      //當前頁碼

public $init;      //數字分頁最左邊數字

public $page_len;  //數字分頁最右邊數字

public $pages;     //總頁數



//初始化賦值。

function __construct($pagesize,$pagenum,$page,$init=1,$page_len=7)

{

  $this->pagesize = $pagesize;//每頁記錄

  $this->pagenum  = $pagenum; //總記錄

  $this->page     = $page;

  $this->pages    = ceil($this->pagenum/$this->pagesize); //總頁數

  if(emptyempty($this->page) || $this->page <1 || $this->page > $this->pages)$this->page=1;

  $this->init     = $init; //數字分頁左

  $this->page_len = $page_len;//數字分頁右

  $this->offset   = ($this->page-1)*$this->pagesize;

}



//輸出分頁

function getpage()

{

  $this->prepg = $this->page-1;  //上一頁

  $this->nextpg= ($this->page == $this->pages) ? 0 : $this->page+1;  //下一頁

//   if($this->pages == 1) return false;  //如果只有一頁跳出

  $pagenav = "<span class='divs'>共 ".$this->pages."頁".$this->pagenum."條</span>";

   if($this->page == 1)

   {

    $pagenav .="<a href='#' class='div'>首頁</a> ";

    $pagenav .="<a href='#' class='div'>上一頁</a> ";

   }

   else

   {

     $pagenav .="<a href='".$this->get_url()."=1' class='div'>首頁</a> ";

    $pagenav .="<a href='".$this->get_url()."=".$this->prepg."' class='div'>上一頁</a> ";

   }



   $pagenav .= $this->getvalpage(); //數字分頁



   if($this->page == $this->pages)

   {

     $pagenav .="<a href='#' class='div'>下一頁</a> ";

    $pagenav .="<a href='#' class='div'>尾頁</a> ";

   }

   else

   {

      $pagenav .="<a href='".$this->get_url()."=".$this->nextpg."' class='div'>下一頁</a> ";

    $pagenav .="<a href='".$this->get_url()."=".$this->pages."' class='div'>尾頁</a> ";

   }//開源代碼Vevb.com

  //下拉菜單分頁列表





代碼如下復制代碼

$pagenav .= "<select name='page' class='select' onchange='window.location.href="".$this->get_url()."="+this.value'> ";



   for($i=1;$i<=$this->pages;$i++)

   {

    if($i == $this->page){

     $pagenav .= "<option value='".$i."' selected>".$i."</option> ";

    }

    else

    {

     $pagenav .= "<option value='".$i."'>".$i."</option> ";

    }

   }

   $pagenav.="</select> ";



   return $pagenav;

}



//數字分頁

function getvalpage()

{

  $max_p = $this->pages;

  $this->page_len  = ($this->page_len%2) ? $this->page_len : $this->page_len+1; //如果為偶數便+1

  $pageoffset = ($this->page_len-1)/2; //數字分頁左右數量



  //總頁數和數字分頁顯示數

  if($this->pages > $this->page_len)

  {

   //數字分頁左右數量大于等于當前頁面，不進行偏移

   if($pageoffset>=$this->page)

   {

    $this->init = 1;

    $max_p= $this->page_len;

   }

   else

   {

    //當前頁碼+左右數量大于總數量，不進行偏移

    if($this->page+$pageoffset > $this->pages)

    {

     $this->init  = $this->pages-$this->page_len+1;

    }

    else

    {

     //進行偏移，最左邊當前頁碼 - 左右數量

     $this->init   = $this->page-$pageoffset;

     $max_p = $this->page+$pageoffset;

    }

   }

  }



  //循環數字分頁

  for($i=$this->init ;$i<=$max_p;$i++)

  {

   //$i 等于當前頁碼

   if($i == $this->page)

   {

    $pagenav .= "<a href='#' class='divsi'>".$i."</a>";

   }

   else

   {

    $pagenav .= "<a href='".$this->get_url()."=".$i."' class='div'>".$i."</a>";

   }

  }

  return $pagenav;

}



//獲取url地址

function get_url()

{

  $url = $_server['request_uri'];

  $parse_url = parse_url($url);

  $query_url = $parse_url['query']; //取出url上的參數

  if($query_url)

  {

   //將&page 替換為空

   $query_url = ereg_replace("(^|&)page=$this->page","",$query_url);

   $url = str_replace($parse_url['query'],$query_url,$url);

   if($query_url)$url .= '&page';

   else $url .= 'page';

  }

  else

  {

   $url .= '?page';

  }

  return $url;

}

}

?>

數據庫代碼如下:

/*

navicat mysql data transfer

source server         : localhost_3306

source server version : 50051

source host           : localhost:3306

source database       : news

target server type    : mysql

target server version : 50051

file encoding         : 65001

date: 2010-03-30 00:17:08

*/

set foreign_key_checks=0;

-- ----------------------------

-- table structure for `v_char`

-- ----------------------------

drop table if exists `v_char`;

create table `v_char` (

  `id` int(10) not null auto_increment,

  `name` char(10) default null,

  primary key  (`id`)

) engine=innodb auto_increment=401 default charset=gbk;

-- ----------------------------

-- records of v_char

-- ----------------------------

insert into `v_char` values ('1', 'test1');

insert into `v_char` values ('2', 'test2');

insert into `v_char` values ('3', 'test3');

insert into `v_char` values ('4', 'test4');

insert into `v_char` values ('5', 'test5');

insert into `v_char` values ('6', 'test6');

insert into `v_char` values ('7', 'test7');

insert into `v_char` values ('8', 'test8');

insert into `v_char` values ('9', 'test9');

insert into `v_char` values ('10', 'test10');

insert into `v_char` values ('11', 'test11');

insert into `v_char` values ('12', 'test12');