PHP实现的分页类定义与用法示例

　　本文实例讲述了PHP实现的分页类定义与用法。分享给大家供大家参考，具体如下：

　　 <?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(); $this->bothnum = 2; } // private function __get($_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=.$_page. rel=external nofollow rel=external nofollow >.$_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=.$_page. rel=external nofollow rel=external nofollow >.$_page.</a> ; } return $_pagelist; } //首页 private function first() { if ($this->page > $this->bothnum+1) { return <a href=.$this->url. rel=external nofollow >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=.($this->page-1). rel=external nofollow >上一页</a> ; } //下一页 private function next() { if ($this->page == $this->pagenum) { return <span class=disabled>下一页</span>; } return <a href=.$this->url.&page=.($this->page+1). rel=external nofollow >下一页</a> ; } //尾页 private function last() { if ($this->pagenum - $this->page > $this->bothnum) { return ...<a href=.$this->url.&page=.$this->pagenum. rel=external nofollow >.$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; } } ?>

　　分页样式如下图所示：

　　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. ?>

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　　希望本文所述对大家PHP程序设计有所帮助。