thinkphp增加每页显示条数的方法

互联网 20-5-21

需求多加一个类似phpmyadmin一样的每页显示条数查了好久都没找到

看到thinkphp 分页类是html拼接的很low 但是方便了我修改新增需求

在原生分页类基础上新定义了一个num变量

show方法返回的时候 thinkphp拼接html的地方新加了一段选择条数的代码

return "<ul class='am-pagination am-pagination-right'>{$page_str}</ul> 		<div class='am-dropdown  am-dropdown-up' data-am-dropdown> 			<button class='am-btn am-btn-primary am-dropdown-toggle' data-am-dropdown-toggle>显示条数 <span class='am-icon-caret-up'></span></button> 			<ul class='am-dropdown-content'> 				<li><a href='".$this->urlNum(10,1)."'>10</a></li> 				<li><a href='".$this->urlNum(30,1)."'>30</a></li> 				<li><a href='".$this->urlNum(50,1)."'>50</a></li> 			</ul> 		</div>";

然后新加的urlNum方法是这样：

private function urlNum($num,$page){     $str = str_replace(urlencode('[PAGE]'), $page, $this->url);     return str_replace(urlencode('[NUM]'), $num,  $str); }

开始的时候由于page这个变量 thinkphp会先变一个转码的后面才替换

而且page=1的时候 url里是不显示的但是还有这个参数

导致num这个变量老是搞得url 很不稳定经常叠加

后面只有做了一个小牺牲(选定每页显示条数的时候 url page即使为1 也会加上)

不过这并没有什么影响

整个代码分页类就是这样：

<?php // +---------------------------------------------------------------------- // | ThinkPHP [ WE CAN DO IT JUST THINK IT ] // +---------------------------------------------------------------------- // | Copyright (c) 2006-2014 http://thinkphp.cn All rights reserved. // +---------------------------------------------------------------------- // | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 ) // +---------------------------------------------------------------------- // | Author: 麦当苗儿 <zuojiazi@vip.qq.com> <http://www.zjzit.cn> // +---------------------------------------------------------------------- namespace Think;  class Page{     public $firstRow; // 起始行数     public $listRows; // 列表每页显示行数     public $parameter; // 分页跳转时要带的参数     public $totalRows; // 总行数     public $totalPages; // 分页总页面数     public $rollPage   = 11;// 分页栏每页显示的页数 	public $lastSuffix = true; // 最后一页是否显示总页数      private $p       = 'p'; //分页参数名     private $num       = 'num'; //分页参数名     private $url     = ''; //当前链接URL     private $nowPage = 1; 	// 分页显示定制     private $config  = array(         'header' => '<span class="rows">共 %TOTAL_ROW% 条记录</span>',         'prev'   => '&laquo;',         'next'   => '&raquo;',         'first'  => '1...',         'last'   => '...%TOTAL_PAGE%',         'theme'  => '%HEADER% %FIRST% %UP_PAGE% %LINK_PAGE% %DOWN_PAGE% %END%',     );      /**      * 架构函数      * @param array $totalRows  总的记录数      * @param array $listRows  每页显示记录数      * @param array $parameter  分页跳转的参数      */     public function __construct($totalRows, $listRows=20, $parameter = array()) {         C('VAR_PAGE') && $this->p = C('VAR_PAGE'); //设置分页参数名称         /* 基础设置 */         $this->totalRows  = $totalRows; //设置总记录数         $this->listRows   = $listRows;  //设置每页显示行数         $this->parameter  = empty($parameter) ? $_GET : $parameter;         $this->nowPage    = empty($_GET[$this->p]) ? 1 : intval($_GET[$this->p]);         $this->nowPage    = $this->nowPage>0 ? $this->nowPage : 1;         $this->firstRow   = $this->listRows * ($this->nowPage - 1);     }      /**      * 定制分页链接设置      * @param string $name  设置名称      * @param string $value 设置值      */     public function setConfig($name,$value) {         if(isset($this->config[$name])) {             $this->config[$name] = $value;         }     }      /**      * 生成链接URL      * @param  integer $page 页码      * @return string      */     private function url($page){         // return str_replace(urlencode('[PAGE]'), $page, $this->url); 		$num = $_GET['num'] ? $_GET['num'] : '10';         $str = str_replace(urlencode('[NUM]'), $num,   $this->url);         return str_replace(urlencode('[PAGE]'), $page, $str);     } 	 	private function urlNum($num,$page){         $str = str_replace(urlencode('[PAGE]'), $page, $this->url);         return str_replace(urlencode('[NUM]'), $num,  $str);     }     /**      * 组装分页链接      * @return string      */     public function show() {         if(0 == $this->totalRows) return '';          /* 生成URL */ 		// echo $this->num;die;         $this->parameter[$this->p] = '[PAGE]';  		// $num = empty($_GET['num']) ? '20' : '';         $this->parameter[$this->num] = '[NUM]';         $this->url = U(ACTION_NAME, $this->parameter);         /* 计算分页信息 */         $this->totalPages = ceil($this->totalRows / $this->listRows); //总页数         if(!empty($this->totalPages) && $this->nowPage > $this->totalPages) {             $this->nowPage = $this->totalPages;         }          /* 计算分页临时变量 */         $now_cool_page      = $this->rollPage/2; 		$now_cool_page_ceil = ceil($now_cool_page); 		$this->lastSuffix && $this->config['last'] = $this->totalPages;          //上一页         $up_row  = $this->nowPage - 1;         $up_page = $up_row > 0 ? '<li><a class="prev" href="' . $this->url($up_row) . '">' . $this->config['prev'] . '</a></li>' : '';          //下一页         $down_row  = $this->nowPage + 1;         $down_page = ($down_row <= $this->totalPages) ? '<li><a class="next" href="' . $this->url($down_row) . '">' . $this->config['next'] . '</a></li>' : '';          //第一页         $the_first = '';         if($this->totalPages > $this->rollPage && ($this->nowPage - $now_cool_page) >= 1){             $the_first = '<li><a class="first" href="' . $this->url(1) . '">' . $this->config['first'] . '</a></li>';         }          //最后一页         $the_end = '';         if($this->totalPages > $this->rollPage && ($this->nowPage + $now_cool_page) < $this->totalPages){             $the_end = '<li><a class="end" href="' . $this->url($this->totalPages) . '">' . $this->config['last'] . '</a></li>';         }          //数字连接         $link_page = "";         for($i = 1; $i <= $this->rollPage; $i++){ 			if(($this->nowPage - $now_cool_page) <= 0 ){ 				$page = $i; 			}elseif(($this->nowPage + $now_cool_page - 1) >= $this->totalPages){ 				$page = $this->totalPages - $this->rollPage + $i; 			}else{ 				$page = $this->nowPage - $now_cool_page_ceil + $i; 			}             if($page > 0 && $page != $this->nowPage){                  if($page <= $this->totalPages){                     $link_page .= '<li><a class="num" href="' . $this->url($page) . '">' . $page . '</a></li>';                 }else{                     break;                 }             }else{                 if($page > 0 && $this->totalPages != 1){                     $link_page .= '<li class="am-active"><a href="#">' . $page . '</a></li>';                 }             }         }          //替换分页内容         $page_str = str_replace(             array('%HEADER%', '%NOW_PAGE%', '%UP_PAGE%', '%DOWN_PAGE%', '%FIRST%', '%LINK_PAGE%', '%END%', '%TOTAL_ROW%', '%TOTAL_PAGE%'),             array($this->config['header'], $this->nowPage, $up_page, $down_page, $the_first, $link_page, $the_end, $this->totalRows, $this->totalPages),             $this->config['theme']); 			return "<ul class='am-pagination am-pagination-right'>{$page_str}</ul> 					<div class='am-dropdown  am-dropdown-up' data-am-dropdown> 						<button class='am-btn am-btn-primary am-dropdown-toggle' data-am-dropdown-toggle>显示条数 <span class='am-icon-caret-up'></span></button> 						<ul class='am-dropdown-content'> 							<li><a href='".$this->urlNum(10,1)."'>10</a></li> 							<li><a href='".$this->urlNum(30,1)."'>30</a></li> 							<li><a href='".$this->urlNum(50,1)."'>50</a></li> 						</ul> 					</div>";     } }

效果如下：