PHP分页类

最新推荐文章于 2025-12-05 12:53:34 发布

原创最新推荐文章于 2025-12-05 12:53:34 发布 · 580 阅读

0 ·

CC 4.0 BY-SA版权

文章标签：

#php #function #class #存储

本文介绍了一个PHP分页处理类的实现细节，包括如何通过构造函数初始化分页参数、获取Limit变量的方法以及生成分页导航链接的策略。适用于需要在PHP应用中实现高效分页功能的开发者。

<?php
/**
 * @author Genshing
 * @desc 分页处理文件
 * @lastmodify 2008-8-23 17:07
 * 
 * @param $style:二维数组，存储输出的分页样式。其中：
 * count:输出当前页码和页码总数，当前页码为NOW，页码总数为COUNT EG： NOW/COUNT 则输出：1/2
 * back:上一页，链接处变量为LINK
 * link:普通页码链接，链接处变量为LINK，页码为PAGE
 * now:当前页码，页码为PAGE
 * next:下一页，链接处变量为LINK
*/
class page {
    public $count;    //记录总数    
    public $nowpage;    //目前页码
    public $paginal;    //每页记录数
    public $pagenum;    //页码数量
    public $pagecount;    //页码总数
    public $styletype;    //分页风格选择
    public $style = array(
    array(
    'count'=>'',
    'back'=>'<a class="Arrow" href="LINK" mce_href="LINK"><<</a>',
    'link'=>'<a class="SquareLink" href="LINK" mce_href="LINK">PAGE</a>',
    'now'=>'<b>PAGE</b>',
    'next'=>'<a class="Arrow" href="LINK" mce_href="LINK">>></a>'
    ),
    );    //分页风格设置
    public function __construct($count, $paginal=20, $pagenum=10, $styletype=0){        
        $this->count = intval($count);
        $this->paginal = intval($paginal);
        $this->styletype = intval($styletype);
        if(!intval($_GET['page'])){
            $this->nowpage = intval($_GET['page']) + 1;
        } else {
            $this->nowpage = intval($_GET['page']);
        }
        $this->pagenum = intval($pagenum);
        $this->pagecount = intval($this->count / $this->paginal);
        if($this->pagecount < 1)
        $this->pagecount++;
        if($this->nowpage > $this->pagecount)
        $this->nowpage = 1;
    }
    /**
     * @author Genshing
     * @abstract 返回Limit变量
     */
    public function getlimit(){
        $ofset = $this->paginal * ($this->nowpage - 1);
        return array('limit'=>$this->paginal, 'ofset'=>$ofset);
    }
    
    /**
     * @author Genshing
     * @abstract 获取分页输出字符串
     * @return Strings
     */
    public function Getlink(){
        $getvar = $this->Getvar();
        $link = '';
        $begin = intval($this->nowpage / $this->pagenum) + 1;
        if($this->pagecount <= $this->nowpage){
            $end = $this->nowpage;
        } elseif($this->pagecount <= ($begin + $this->pagenum - 1)) {
            $end  = $this->pagecount;
        } else {
            $end  = $begin + $this->pagenum - 1;
        }        
        if($this->style[$this->styletype]['count']){
            $str = str_replace('NOW',$this->nowpage,$this->style[$this->styletype]['count']);
            $str = str_replace('COUNT',$this->count,$str);
            $link .= $str;
        }
        if($this->style[$this->styletype]['back']){
            $link .= str_replace('LINK','?'.$getvar.'page='.($this->nowpage - 1),$this->style[$this->styletype]['back']);
        }
        for ($i = $begin; $i <= $end; $i++){
            if($i == $this->nowpage){
                if($this->style[$this->styletype]['now']){
                    $link .= str_replace('PAGE',$i,$this->style[$this->styletype]['now']);
                }
            } else {
                if($this->style[$this->styletype]['link']){
                    $str = str_replace('LINK','?'.$getvar.'page='.$i,$this->style[$this->styletype]['link']);
                    $str = str_replace('PAGE',$i,$str);
                    $link .= $str;
                }
            }
        }
        if($this->style[$this->styletype]['next']){
            $link .= str_replace('LINK','?'.$getvar.'page='.($this->nowpage + 1),$this->style[$this->styletype]['next']);
        }
        //print_r($_GET);
        return $link;
    }
    /**
     * @author Genshing
     * @abstract 获取当前GET参数
     */
    private function Getvar(){
        $link = '';
        foreach ($_GET as $key=>$tmp){
            if($key != 'page')
            $link .= $key.'='.$tmp.'&';
        }
        return $link;
    }
}
?>