PHP快速自定义分页类

PHP快速自定义分页类

<?php
//自定义分页类
class Page{
    public $page; //当前页号
    public $pageSize; //当前页大小
    public $maxRows; //最大数据条数
    public $maxPage; //最大页数
    
    //构造方法
    public function __construct($maxRows,$pageSize=10){
        $this->maxRows = $maxRows; //总数据条数
        $this->pageSize = $pageSize; //页大小
        $this->page = isset($_GET['p'])?$_GET['p']:1; //获取当前页码
        $this->getMaxPage();
        $this->checkPage();
    }
    //计算最大页数
    private function getMaxPage(){
        $this->maxPage = ceil($this->maxRows/$this->pageSize);
    }
    //校验当前页号
    private function checkPage(){
        if($this->page>$this->maxPage){
            $this->page = $this->maxPage;
        }
        if($this->page<1){
            $this->page=1;
        }
    }

    //返回当前页的limit语句
    public function limit(){
        return (($this->page-1)*$this->pageSize).",".$this->pageSize;
    }
    
    //输出分页页码信息
    public function show(){
        //获取当前页的url地址
        $url = $_SERVER["PHP_SELF"];
        
        $str = " 当前第{$this->page}/{$this->maxPage}页 ";
        $str .=" 共计{$this->maxRows}条 ";
        $str .=" <a href='{$url}?p=1'>首页</a> ";
        $str .=" <a href='{$url}?p=".($this->page-1)."'>上一页</a> ";
        $str .=" <a href='{$url}?p=".($this->page+1)."'>下一页</a> ";
        $str .=" <a href='{$url}?p={$this->maxPage}'>末页</a> ";
        
        return $str;
    }
}

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