<?php /** * FILE_NAME : Pages.php * 分页类 */ Call::import('lv.url.URL'); class Pages { public $num = 1; public $size = 50; public $current = 1; private $_pages = array(); private $_title = array(); public function __construct($count, $size = 50) { $this->num = ceil($count / $size); $size > 0 && $this->size = (Int)$size; $page = isset($_GET['page']) ? (Int)trim($_GET['page']) : 1; $page > 1 && $this->current = (Int)$page; $this->_title = array('上一页', '1..', $this->num.'..', '下一页'); } /** * 包装分页 * @param String|Array $skirt * @param Array $entitle * @return String */ public function warp($skirt, $entitle = array()) { empty($this->_pages) && $this->get(); $entitle += $this->_title; $skirt = (Array)$skirt + array('', NULL); $data = implode($skirt[1].$skirt[0], $this->_pages); !is_null($skirt[1]) && $data = $skirt[0].$data.$skirt[1]; return vsprintf($data, $entitle); } /** * 获取分页 * @param Int $num 展示分页数 * @param Int $span 分页间隔 */ public function get($num = '5', $span = '2') { $this->_pages = array(); $start = $this->current - $num + $span; $start < 1 && $start = 1; $end = $start + $num; $end > $this->num && $end = (Int)$this->num; $this->current > 1 && $this->_pages[] = $this->_setPage($this->current - 1, '%1$s'); $start > 1 && $this->_pages[] = $this->_setPage(NULL, '%2$s'); for($i = $start; $i <= $end; $i++) $this->_pages[] = $this->_setPage($i, $i); $end < $this->num && $this->_pages[] = $this->_setPage($this->num, '%3$s'); $this->current < $this->num && $this->_pages[] = $this->_setPage($this->current + 1, '%4$s'); return (Array)$this->_pages; } private function _setPage($page, $name = '%s') { $hover = $page == $this->current ? ' class="pageHover"' : ''; return sprintf('<a href="%s"%s>%s</a>', URL::refresh(array('page' => $page)), $hover, $name); } } ?>
使用示范
$pages = new Pages(100, 20); $pages->warp('|');