实用好用的PHP分页类代码与使用
类的代码如下：
<?php
class Page {
?? private $total;??? //总记录
?? private $pagesize;?? //每页显示多少条
?? private $limit;??? //limit
?? private $page;??? //当前页码
?? private $pagenum;? //总页码
?? private $url;???? //地址
?? private $bothnum;? //两边保持数字分页的量
??
?? //构造方法初始化
?? public function __construct($_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();
??? $this->bothnum = 2;
?? }
??
?? //拦截器
?? private function __get($_key) {
??? return $this->$_key;
?? }
??
?? //获取当前页码
?? 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 $_url;
?? }?? //数字目录
?? private function pageList() {
??? for ($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 $_pagelist;
?? }
??
?? //首页 http://ini.iteye.com/
?? private function first() {
??? if ($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='.($this->page+1).'">下一页</a> ';
?? }
??
?? //尾页
?? private function last() {
??? if ($this->pagenum - $this->page > $this->bothnum) {
???? return ' ...<a href="'.$this->url.'&page='.$this->pagenum.'">'.$this->pagenum.'</a> ';
??? }
?? }
??
?? //分页信息
?? public function showpage() {
??? $_page .= $this->first();
??? $_page .= $this->pageList();
??? $_page .= $this->last();
??? $_page .= $this->prev();
??? $_page .= $this->next();
??? return $_page;
?? }
?}
?>
??使用说明：
<?php $_page = new Page($_total,$_pagesize); //其中 $_total 是数据集的总条数,$_pagesize 是每页显示的数量. ?>
?分页样式如下图所示：?
?
