分頁類封裝
阿新 • • 發佈：2017-09-28
iss 初始 keycode args ceil 列表 首頁 set uil
<?php /* * To change this template, choose Tools | Templates * and open the template in the editor. */ /** * 分頁類 * 使用方式: * $page = new Page(); * $page->init(1000, 20); * $page->setNotActiveTemplate(‘<span> {a} </span>‘); * $page->setActiveTemplate(‘{a}‘); * echo $page->show(); * * * @author 風居住的地方*/ class Page { /** * 總條數 */ private $total; /** * 每頁大小 */ private $pageSize; /** * 總頁數 */ private $pageNum; /** * 當前頁 */ private $page; /** * 地址 */ private $uri; /** * 分頁變量 */ private $pageParam; /** * LIMIT XX,XX*/ private $limit; /** * 數字分頁顯示 */ private $listnum = 8; /** * 分頁顯示模板 * 可用變量參數 * {total} 總數據條數 * {pagesize} 每頁顯示條數 * {start} 本頁開始條數 * {end} 本頁結束條數 * {pagenum} 共有多少頁 * {frist} 首頁 * {pre} 上一頁 * {next} 下一頁 * {last} 尾頁 * {list} 數字分頁 * {goto} 跳轉按鈕*/ private $template = ‘<div><span>共有{total}條數據</span><span>每頁顯示{pagesize}條數據</span>,<span>本頁{start}-{end}條數據</span><span>共有{pagenum}頁</span><ul>{frist}{pre}{list}{next}{last}{goto}</ul></div>‘; /** * 當前選中的分頁鏈接模板 */ private $activeTemplate = ‘<li class="active"><a href="javascript:;">{text}</a></li>‘; /** * 未選中的分頁鏈接模板 */ private $notActiveTemplate = ‘<li><a href="{url}">{text}</a></li>‘; /** * 顯示文本設置 */ private $config = array(‘frist‘ => ‘首頁‘, ‘pre‘ => ‘上一頁‘, ‘next‘ => ‘下一頁‘, ‘last‘ => ‘尾頁‘); /** * 初始化 * @param type $total 總條數 * @param type $pageSize 每頁大小 * @param type $param url附加參數 * @param type $pageParam 分頁變量 */ public function init($total, $pageSize, $param = ‘‘, $pageParam = ‘page‘) { $this->total = intval($total); $this->pageSize = intval($pageSize); $this->pageParam = $pageParam; $this->uri = $this->geturi($param); $this->pageNum = ceil($this->total / $this->pageSize); $this->page = $this->setPage(); $this->limit = $this->setlimit(); } /** * 設置分頁模板 * @param type $template 模板配置 */ public function setTemplate($template) { $this->template = $template; } /** * 設置選中分頁模板 * @param type $activeTemplate 模板配置 */ public function setActiveTemplate($activeTemplate) { $this->activeTemplate = $activeTemplate; } /** * 設置未選中分頁模板 * @param type $notActiveTemplate 模板配置 */ public function setNotActiveTemplate($notActiveTemplate) { $this->notActiveTemplate = $notActiveTemplate; } /** * 返回分頁 * @return type */ public function show() { return str_ireplace(array( ‘{total}‘, ‘{pagesize}‘, ‘{start}‘, ‘{end}‘, ‘{pagenum}‘, ‘{frist}‘, ‘{pre}‘, ‘{next}‘, ‘{last}‘, ‘{list}‘, ‘{goto}‘, ), array( $this->total, $this->setPageSize(), $this->star(), $this->end(), $this->pageNum, $this->frist(), $this->prev(), $this->next(), $this->last(), $this->pagelist(), $this->gopage(), ), $this->template); } /** * 獲取limit起始數 * @return type */ public function getOffset() { return ($this->page - 1) * $this->pageSize; } /** * 設置LIMIT * @return type */ private function setlimit() { return "limit " . ($this->page - 1) * $this->pageSize . ",{$this->pageSize}"; } /** * 獲取limit * @param type $args * @return type */ public function __get($args) { if ($args == "limit") { return $this->limit; } else { return null; } } /** * 初始化當前頁 * @return int */ private function setPage() { if (!empty($_GET[$this->pageParam])) { if ($_GET[$this->pageParam] > 0) { if ($_GET[$this->pageParam] > $this->pageNum) return $this->pageNum; else return $_GET[$this->pageParam]; } } return 1; } /** * 初始化url * @param type $param * @return string */ private function geturi($param) { $url = $_SERVER[‘REQUEST_URI‘] . (strpos($_SERVER[‘REQUEST_URI‘], "?") ? "" : "?") . $param; $parse = parse_url($url); if (isset($parse["query"])) { parse_str($parse["query"], $params); unset($params["page"]); $url = $parse["path"] . "?" . http_build_query($params); return $url; } else { return $url; } } /** * 本頁開始條數 * @return int */ private function star() { if ($this->total == 0) { return 0; } else { return ($this->page - 1) * $this->pageSize + 1; } } /** * 本頁結束條數 * @return type */ private function end() { return min($this->page * $this->pageSize, $this->total); } /** * 設置當前頁大小 * @return type */ private function setPageSize() { return $this->end() - $this->star() + 1; } /** * 首頁 * @return type */ private function frist() { $html = ‘‘; if ($this->page == 1) { $html .= $this->replace("{$this->uri}&page=1", $this->config[‘frist‘], true); } else { $html .= $this->replace("{$this->uri}&page=1", $this->config[‘frist‘], false); } return $html; } /** * 上一頁 * @return type */ private function prev() { $html = ‘‘; if ($this->page > 1) { $html .= $this->replace($this->uri.‘&page=‘.($this->page - 1), $this->config[‘pre‘], false); } else { $html .= $this->replace($this->uri.‘&page=‘.($this->page - 1), $this->config[‘pre‘], true); } return $html; } /** * 分頁數字列表 * @return type */ private function pagelist() { $linkpage = ""; $lastlist = floor($this->listnum / 2); for ($i = $lastlist; $i >= 1; $i--) { $page = $this->page - $i; if ($page >= 1) { $linkpage .= $this->replace("{$this->uri}&page={$page}", $page, false); } else { continue; } } $linkpage .= $this->replace("{$this->uri}&page={$this->page}", $this->page, true); for ($i = 1; $i <= $lastlist; $i++) { $page = $this->page + $i; if ($page <= $this->pageNum) { $linkpage .= $this->replace("{$this->uri}&page={$page}", $page, false); } else { break; } } return $linkpage; } /** * 下一頁 * @return type */ private function next() { $html = ‘‘; if ($this->page < $this->pageNum) { $html .= $this->replace($this->uri.‘&page=‘.($this->page + 1), $this->config[‘next‘], false); } else { $html .= $this->replace($this->uri.‘&page=‘.($this->page + 1), $this->config[‘next‘], true); } return $html; } /** * 最後一頁 * @return type */ private function last() { $html = ‘‘; if ($this->page == $this->pageNum) { $html .= $this->replace($this->uri.‘&page=‘.($this->pageNum), $this->config[‘last‘], true); } else { $html .= $this->replace($this->uri.‘&page=‘.($this->pageNum), $this->config[‘last‘], false); } return $html; } /** * 跳轉按鈕 * @return string */ private function gopage() { $html = ‘‘; $html.=‘ <input type="text" value="‘ . $this->page . ‘" onkeydown="javascript:if(event.keyCode==13){var page=(this.value>‘ . $this->pageNum . ‘)?‘ . $this->pageNum . ‘:this.value;location=\‘‘ . $this->uri . ‘&page=\‘+page+\‘\‘}" style="width:25px;"/><input type="button" onclick="javascript:var page=(this.previousSibling.value>‘ . $this->pageNum . ‘)?‘ . $this->pageNum . ‘:this.previousSibling.value;location=\‘‘ . $this->uri . ‘&page=\‘+page+\‘\‘" value="GO"/>‘; return $html; } /** * 模板替換 * @param type $replace 替換內容 * @param type $result 條件 * @return type */ private function replace($url, $text, $result = true) { $template = ($result ? $this->activeTemplate : $this->notActiveTemplate); $html = str_replace(‘{url}‘, $url, $template); $html = str_replace(‘{text}‘, $text, $html); return $html; } }
分頁類封裝