本文實例講述了PHP實現(xiàn)簡單實用的分頁類。分享給大家供大家參考，具體如下：
<?php
class Page {
private $total; //總記錄
private $pagesize; //每頁顯示多少條
private $limit; //limit
private $page; //當(dāng)前頁碼
private $pagenum; //總頁碼
private $url; //地址
private $bothnum; //兩邊保持?jǐn)?shù)字分頁的量
//構(gòu)造方法初始化
public function __construct($_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();
$this->bothnum = 2;
}
//攔截器
private function __get($_key) {
return $this->$_key;
}
//獲取當(dāng)前頁碼
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;
}
}
//獲取地址
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 $_url;
} //數(shù)字目錄
private function pageList() {
for ($i=$this->bothnum;$i>=1;$i--) {
$_page = $this->page-$i;
if ($_page < 1) continue;
$_pagelist .= ' <a href="'.$this->url.'&page='.$_page.'">'.$_page.'</a> ';
}
$_pagelist .= ' <span>'.$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 $_pagelist;
}
//首頁
private function first() {
if ($this->page > $this->bothnum+1) {
return ' <a href="'.$this->url.'">1</a> ...';
}
}
//上一頁
private function prev() {
if ($this->page == 1) {
return '<span>上一頁</span>';
}
return ' <a href="'.$this->url.'&page='.($this->page-1).'">上一頁</a> ';
}
//下一頁
private function next() {
if ($this->page == $this->pagenum) {
return '<span>下一頁</span>';
}
return ' <a href="'.$this->url.'&page='.($this->page+1).'">下一頁</a> ';
}
//尾頁
private function last() {
if ($this->pagenum - $this->page > $this->bothnum) {
return ' ...<a href="'.$this->url.'&page='.$this->pagenum.'">'.$this->pagenum.'</a> ';
}
}
//分頁信息
public function showpage() {
$_page .= $this->first();
$_page .= $this->pageList();
$_page .= $this->last();
$_page .= $this->prev();
$_page .= $this->next();
return $_page;
}
}
?>
分頁樣式如下圖所示：
使用說明：
<?php
$_page = new Page($_total,$_pagesize);
//其中 $_total 是數(shù)據(jù)集的總條數(shù),$_pagesize 是每頁顯示的數(shù)量.
?>
希望本文所述對大家PHP程序設(shè)計有所幫助。