<?php class Page { private $each_disNums; //每页显示的条目数 private $nums; //总条目数 private $current_page; //当前被选中的页 private $sub_pages; //每次显示的页数 private $pageNums; //总页数 private $page_array = array(); //用来构造分页的数组 private $subPage_link; //每个分页的链接 /** * * __construct是SubPages的构造函数,用来在创建类的时候自动运行. * @$each_disNums 每页显示的条目数 * @nums 总条目数 * @current_num 当前被选中的页 * @sub_pages 每次显示的页数 * @subPage_link 每个分页的链接 * @subPage_type 显示分页的类型 * * 当@subPage_type=1的时候为普通分页模式 * example: 共4523条记录,每页显示10条,当前第1/453页 [首页] [上页] [下页] [尾页] * 当@subPage_type=2的时候为经典分页样式 * example: 当前第1/453页 [首页] [上页] 1 2 3 4 5 6 7 8 9 10 [下页] [尾页] */ public function __construct($each_disNums, $nums, $current_page, $sub_pages) { $this->each_disNums = intval($each_disNums); $this->nums = intval($nums); if (!$current_page) { $this->current_page = 1; } else { $this->current_page = intval($current_page); } $this->sub_pages = intval($sub_pages); $this->pageNums = ceil($nums / $each_disNums); $uri = $_SERVER['REQUEST_URI']; $uri = str_replace('&page=' . $this->current_page, '', $uri); $uri = str_replace('?page=' . $this->current_page, '', $uri); $this->subPage_link = Typecho_Widget::widget('Widget_Options')->index . $uri . "&page="; } /* __destruct析构函数,当类不在使用的时候调用,该函数用来释放资源。 */ public function __destruct() { unset($each_disNums); unset($nums); unset($current_page); unset($sub_pages); unset($pageNums); unset($page_array); unset($subPage_link); } /* 用来给建立分页的数组初始化的函数。 */ public function initArray() { for ($i = 0; $i < $this->sub_pages; $i++) { $this->page_array[$i] = $i; } return $this->page_array; } /* construct_num_Page该函数使用来构造显示的条目 即使:[1][2][3][4][5][6][7][8][9][10] */ public function construct_num_Page() { if ($this->pageNums < $this->sub_pages) { $current_array = array(); for ($i = 0; $i < $this->pageNums; $i++) { $current_array[$i] = $i + 1; } } else { $current_array = $this->initArray(); if ($this->current_page <= 3) { for ($i = 0; $i < count($current_array); $i++) { $current_array[$i] = $i + 1; } } elseif ($this->current_page <= $this->pageNums && $this->current_page > $this->pageNums - $this->sub_pages + 1) { for ($i = 0; $i < count($current_array); $i++) { $current_array[$i] = ($this->pageNums) - ($this->sub_pages) + 1 + $i; } } else { for ($i = 0; $i < count($current_array); $i++) { $current_array[$i] = $this->current_page - 2 + $i; } } } return $current_array; } /* 构造经典模式的分页 当前第1/453页 [首页] [上页] 1 2 3 4 5 6 7 8 9 10 [下页] [尾页] */ public function show() { $str = ""; if ($this->current_page > 1) { $firstPageUrl = $this->subPage_link . "1"; $prevPageUrl = $this->subPage_link . ($this->current_page - 1); $str .= '<li><a href="' . $prevPageUrl . '">«</a></li>'; } else { $str .= ''; } $a = $this->construct_num_Page(); for ($i = 0; $i < count($a); $i++) { $s = $a[$i]; if ($s == $this->current_page) { $str .= '<li class="current"><a href="' . $url . '">' . $s . '</a></li>'; } else { $url = $this->subPage_link . $s; $str .= '<li><a href="' . $url . '">' . $s . '</a></li>'; } } if ($this->current_page < $this->pageNums) { $lastPageUrl = $this->subPage_link . $this->pageNums; $nextPageUrl = $this->subPage_link . ($this->current_page + 1); $str .= '<li><a href="' . $nextPageUrl . '">»</a></li>'; } else { $str .= ''; } return $str; } }