实例讲述PHP实现简单实用的分页类
作者:admin发布时间:2021-11-02分类:软件教程浏览:评论:0
导读:本文实例讲述了PHP实现简单实用的分页类。分享给大家供大家参考,具体如下:12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394
文中案例叙述了PHP完成非常简单好用的分页查询类。共享给大伙儿供各位参照,实际方式:
使用说明书:
分页样式如下图所显示:1
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101<?php
class Page {
private $total; //总纪录
private $pagesize; //每张表明是多少条
private $limit; //limit
private $page; //当今页数
private $pagenum; //总页数
private $url; //详细地址
private $bothnum; //两侧维持数据分页查询的量
//构造函数复位
public function ._construct($_total, $_pagesize) {
$this->total = $_total ? $_total : 1;
$this->pagesize = $_pagesize;
$this->pagenum = ceil($this->total / $this->pagesize);
$this->page = $this->setPage();
$this->limit = "LIMIT ".($this->page-1)*$this->pagesize.",$this->pagesize";
$this->url = $this->setUrl();
$this->bothnum = 2;
}
//回调函数
private function ._get($_key) {
return $this->$_key;
}
//获得当今页数
private function setPage() {
if (!empty($_GET['page'])) {
if ($_GET['page'] > 0) {
if ($_GET['page'] > $this->pagenum) {
return $this->pagenum;
} else {
return $_GET['page'];
}
} else {
return 1;
}
} else {
return 1;
}
}
//获得详细地址
private function setUrl() {
$_url = $_SERVER["REQUEST_URI"];
$_par = parse_url($_url);
if (isset($_par['query'])) {
parse_str($_par['query'],$_query);
unset($_query['page']);
$_url = $_par['path'].'?'.http_build_query($_query);
}
return $_url;
} //数据文件目录
private function pageList() {
for ($i=$this->bothnum;$i>=1;$i--) {
$_page = $this->page-$i;
if ($_page < 1) continue;
$_pagelist .= ' <a href="'.$this->url.'&page='.$_page.'">'.$_page.'</a> ';
}
$_pagelist .= ' <span class="me">'.$this->page.'</span> ';
for ($i=1;$i<=$this->bothnum;$i ) {
$_page = $this->page $i;
if ($_page > $this->pagenum) break;
$_pagelist .= ' <a href="'.$this->url.'&page='.$_page.'">'.$_page.'</a> ';
}
return $_pagelist;
}
//主页
private function first() {
if ($this->page > $this->bothnum 1) {
return ' <a href="'.$this->url.'">1</a> ...';
}
}
//上一页
private function prev() {
if ($this->page == 1) {
return '<span class="disabled">上一页</span>';
}
return ' <a href="'.$this->url.'&page='.($this->page-1).'">上一页</a> ';
}
//下一页
private function next() {
if ($this->page == $this->pagenum) {
return '<span class="disabled">下一页</span>';
}
return ' <a href="'.$this->url.'&page='.($this->page 1).'">下一页</a> ';
}
//末页
private function last() {
if ($this->pagenum - $this->page > $this->bothnum) {
return ' ...<a href="'.$this->url.'&page='.$this->pagenum.'">'.$this->pagenum.'</a> ';
}
}
//分页查询信息内容
public function showpage() {
$_page .= $this->first();
$_page .= $this->pageList();
$_page .= $this->last();
$_page .= $this->prev();
$_page .= $this->next();
return $_page;
}
}
?>
使用说明书:
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4<?php
$_page = new Page($_total,$_pagesize);
//在其中 $_total 是数据的总总数,$_pagesize 是每张表明的总数.
?>
标签:PHP
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