php 遠程分頁類

2024-05-04 23:06:53

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來源：轉載

供稿：網友

page_total_rows - 每頁展示數量默認值20

$total_rows - 總計數據條目數

$totpages - 總頁數計算

$pages_current - 當前頁面

利用url參數傳遞當前頁碼 url參數名稱 pages

$style - 頁碼展示樣式可以通過外部訪問樣式屬性進行修改

***********************使用方法**********************

調用該類:$pages = new pages;

調用該類后請修改數據集總條數

$pages->total_rows = $totrows;

$pages->main();方法將返回limit需要的2個參數關聯數組的a，b2個元素

$limit = $pages->main();

通過訪問不同方法即可展示不同的功能！

PHP遠程分頁類實例代碼如下:

<?php

class pages{

public $page_total_rows = 20;//每頁展示數量

public $total_rows;//總計數據條目數

public $totpages;//總頁數

public $current_url;//當前頁面名稱

private $ask; //是否出現問號

public $style ='<style type="text/css教程">

.pages_norename{width:50px; height:20px; float:left; background-color:#e3eff3; margin-right:5px; text-align:center; line-height:20px; border:1px solid #333333;}

.pages_norename a{display:block; width:50px; height:20px; color:#333333; text-decoration:none;}

.pages_norename a:hover{background-color:#ff9900; color:#ffffff;}

.pages_nore_more{width:auto; height:20px; float:left; margin-right:5px; line-height:20px; background-color:#e3eff3; border:1px solid #333333;}

.pages_nore_more a{display:block; width:20px; height:20px; color:#333333; text-decoration:none; text-align:center;}

.pages_nore_more a:hover{background-color:#ff9900; color:#ffffff;}

.pages_se{width:auto; height:20px; float:left;}

.pages_se select{margin:0px; padding:0px; font-family:arial, helvetica, sans-serif; font-size:12px;}

</style>

';

//核心計算并以數組的形式返回查詢sql 語句的必須值 limit a,b;

function main(){

  $this->totpages = ceil($this->total_rows/$this->page_total_rows);//總頁數計算

  //獲得當前頁碼-------------------

  if(!isset($_get['pages']))

  {

  $this->pages_current = 1;

  }else

  {

   $this->pages_current = intval($_get['pages']);

   //判斷頁面不為0

   if($this->pages_current < 1){

   $this->pages_current = 1;

   }//開源代碼Vevb.com

   //判斷頁面不能大于最大頁碼數量

   if($this->pages_current > $this->totpages){

   $this->pages_current = $this->totpages;

   }

   //注銷url 參數 pages 和 total_rows 為了更好的傳遞其他url參數

   if(isset($_get['pages'])){unset($_get['pages']);}

   if(isset($_get['total_rows'])){unset($_get['total_rows']);}



  }

  //獲得當前頁碼--------------------

  $limit['a'] = $start = ($this->pages_current - 1)*$this->page_total_rows;

  $limit['b'] = $this->page_total_rows;

  //獲得當前頁面名稱

  $urlin = explode('/',$_server['php教程_self']);



  $tot_url = sizeof($urlin);

  $this->current_url =$urlin[$tot_url-1];

  //獲得當前頁面傳遞的url

  if(sizeof($_get) > 0){

   foreach($_get as $key=>$values){

    $urlsget .= $key.'='.$values.'&';

   }

   $this->current_url .= '?'.$urlsget;

   $this->ask = '';

  }else{$this->ask = '?';}

  //輸出樣式

  echo $this->style;

  return $limit;

}

//展示分頁

//1 第一頁

function firstpage(){

  echo '<div class="pages_norename"><a href="'.$this->current_url.'">首頁</a></div>';

}

//2 上一頁

function prepage(){

  echo '<div class="pages_norename"><a href="'.$this->current_url.$this->ask.'pages='.($this->pages_current-1).'">上一頁</a></div>';

}

//3 下一頁

function nextpage(){

  echo '<div class="pages_norename"><a href="'.$this->current_url.$this->ask.'pages='.($this->pages_current+1).'">下一頁</a></div>';

}

//4 最后一頁

function  lastpage(){

  echo '<div class="pages_norename"><a href="'.$this->current_url.$this->ask.'pages='.($this->totpages).'">尾頁</a></div>';

}

//中間過渡頁

function morepage(){

  if($this->pages_current == 1){$newtj = $this->pages_current+9;}

  elseif($this->pages_current  == 2){$newtj = $this->pages_current+8;}

  elseif($this->pages_current == 3){$newtj = $this->pages_current+7;}

  else{$newtj = $this->pages_current+6;}

   for($i=$this->pages_current-3;$i<=$newtj;$i++){

    if($i==$this->pages_current){$strong ='<strong>'; $strong2 ='</strong>';}else{$strong='';$strong2='';}

    if($i >=1){echo '<div class="pages_nore_more"><a href="'.$this->current_url.$this->ask.'pages='.$i.'">'.$strong.$i.$strong2.'</a></div>';}

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

    break;

    }

   }

}

//跳轉頁面

function changepage(){

  echo '<div class="pages_se"><select name="dd">';

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

  if($this->pages_current == $i){$selected = ' selected="selected"';}else{$selected = '';}

  echo '<option value="'.$i.'"'.$selected.'>第'.$i.'頁</option>';

  }

  echo '</select></div>';

}

}

?>