396 lines
14 KiB
PHP
396 lines
14 KiB
PHP
<?php
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/**
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* @copyright (C)2016-2099 Hnaoyun Inc.
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* @author XingMeng
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* @email hnxsh@foxmail.com
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* @date 2016年11月6日
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* 分页控制类
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*/
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namespace core\view;
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use core\basic\Config;
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class Paging
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{
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// 每页数量
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public $pageSize;
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// 当前页码
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public $page;
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// 数字条数量
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public $num = 5;
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// 调整数量
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public $start = 1;
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// 总记录
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private $rowTotal = 0;
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// 页面数量
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private $pageCount;
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// 存储前置URL
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private $preUrl;
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// 分页实例
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private static $paging;
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private function __construct()
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{
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// 禁用类new实例化
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}
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// 获取单一实例
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public static function getInstance()
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{
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if (! self::$paging) {
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self::$paging = new self();
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}
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return self::$paging;
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}
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// 限制语句
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public function limit($total = null, $morePageStr = false)
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{
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// 起始数据调整
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if (! is_numeric($this->start) || $this->start < 1) {
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$this->start = 1;
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}
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if ($this->start > $total) {
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$this->start = $total + 1;
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}
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// 设置总数
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if ($total) {
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$this->rowTotal = $total - ($this->start - 1);
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}
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// 设置分页大小
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if (! isset($this->pageSize)) {
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$this->pageSize = get('pagesize') ?: Config::get('pagesize') ?: 15;
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}
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// 分页数字条数量
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$this->num = Config::get('pagenum') ?: 5;
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// 计算页数
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$this->pageCount = @ceil($this->rowTotal / $this->pageSize);
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// 获取当前页面
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$this->page = $this->page();
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// 定义相关常量，用于方便模板引擎解析序号等计算和调用
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define('ROWTOTAL', $this->rowTotal);
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define('PAGECOUNT', $this->pageCount);
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define('PAGE', $this->page);
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define('PAGESIZE', $this->pageSize);
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// 注入分页模板变量
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$this->assign($morePageStr);
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// 返回限制语句
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return ($this->page - 1) * $this->pageSize + ($this->start - 1) . ",$this->pageSize";
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}
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// 快速分页字符代码
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public function quikLimit()
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{
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$page = get('page', 'int') ?: 1;
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if ($page < 1) {
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$page = 0;
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}
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$pagesize = config::get('pagesize') ?: 15;
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return ($page - 1) * $pagesize . ",$pagesize";
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}
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// 注入页面相关信息,用于模板调用，如：{$pagebar}调用分页条
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private function assign($morePageStr = false)
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{
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assign('pagebar', $this->pageBar());
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if ($morePageStr) {
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assign('pagecurrent', $this->page()); // 注入当前页
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assign('pagecount', $this->pageCount); // 注入总页数
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assign('pagerows', $this->rowTotal); // 注入总数据
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assign('pageindex', $this->pageIndex()); // 注入首页链接
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assign('pagepre', $this->pagePre()); // 注入前一页链接
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assign('pagenext', $this->pageNext()); // 注入后一页链接
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assign('pagelast', $this->pageLast()); // 注入最后一页链接
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assign('pagestatus', $this->pageStatus()); // 注入分页状态
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assign('pagenumbar', $this->pageNumBar()); // 注入数字
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assign('pageselectbar', $this->pageSelectBar()); // 注入选择栏
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}
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}
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// 当前页码容错处理
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private function page()
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{
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$page = get('page', 'int') ?: $this->page;
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if (is_numeric($page) && $page > 1) {
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if ($page > $this->pageCount && $this->pageCount) {
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return $this->pageCount;
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} else {
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return $page;
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}
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} else {
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return 1;
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}
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}
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// 过滤pathinfo中分页参数
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private function getPreUrl()
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{
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if (! isset($this->preUrl) && URL) {
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$url = parse_url(URL);
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$path = preg_replace('/\/page\/[0-9]+/i', '', $url['path']);
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if (defined('CMS_PAGE') && CMS_PAGE == true) { // 使用CMS分页时去除扩展
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$url_rule_suffix = Config::get('url_rule_suffix');
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if (! ! $pos = strripos($path, $url_rule_suffix)) {
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$path = substr($path, 0, $pos);
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}
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}
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$this->preUrl = $path;
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}
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return $this->preUrl;
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}
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// 构建链接地址
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private function buildPath($page)
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{
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if ($page) {
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if (defined('CMS_PAGE') && CMS_PAGE == true) {
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$url_rule_type = Config::get('url_rule_type') ?: 3;
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$url_rule_suffix = Config::get('url_rule_suffix') ?: '.html';
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$url_break_char = Config::get('url_break_char') ?: '_';
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$url_rule_sort_suffix = '/';
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if ($url_rule_type == 1 || $url_rule_type == 2) {
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if (defined('CMS_PAGE_CUSTOM')) { // 去分页参数
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$prepath = preg_replace('/(.*)' . $url_break_char . '[0-9]+$/', '$1', rtrim($this->getPreUrl(), '/'));
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} else {
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$prepath = preg_replace('/(.*)(' . $url_break_char . '[0-9]+)' . $url_break_char . '[0-9]+$/', '$1$2', rtrim($this->getPreUrl(), '/'));
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}
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if ($prepath) { // 非首页分页
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if ($page == 1) { // 第一页处理
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$path = $prepath . $url_rule_sort_suffix . query_string('p,s');
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} else {
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$path = $prepath . $url_break_char . $page . $url_rule_sort_suffix . query_string('p,s');
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}
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} else { // 首页分页
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$path = ($page == 1) ? SITE_INDEX_DIR . '/' : '?page=' . $page;
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}
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} else {
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if ($url_rule_type == 3 && isset($_SERVER["QUERY_STRING"]) && $qs = $_SERVER["QUERY_STRING"]) {
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parse_str($qs, $output);
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unset($output['page']);
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if ($output && ! current($output)) {
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$path_qs = key($output); // 第一个参数为路径信息，注意PHP数组会自动将点转换下划线
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unset($output[$path_qs]); // 去除路径参数
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// 去后缀扩展
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$temp_suffix = substr($url_rule_suffix, 1);
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if (! ! $pos = strripos($path_qs, '_' . $temp_suffix)) {
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$path = substr($path_qs, 0, $pos); // 去扩展
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} else {
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$path = $path_qs;
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}
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// 去除原分页参数
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if (defined('CMS_PAGE_CUSTOM')) {
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$path = preg_replace('/(.*)' . $url_break_char . '[0-9]+$/', "$1", rtrim($path, '/'));
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} else {
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$path = preg_replace('/(.*)(' . $url_break_char . '[0-9]+)' . $url_break_char . '[0-9]+$/', "$1$2", rtrim($path, '/'));
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}
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// 第一页链接处理
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if ($page == 1) {
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$path = SITE_INDEX_DIR . '/?' . $path . $url_rule_sort_suffix;
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} else {
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$path = SITE_INDEX_DIR . '/?' . $path . $url_break_char . $page . $url_rule_sort_suffix;
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}
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// 附加参数
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if (! ! $qs = http_build_query($output)) {
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$path = rtrim($path, '/') . '&' . $qs;
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}
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}
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}
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if (! $path) { // 转基本分页模式
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return $this->buildBasicPage($page);
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}
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}
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return $path;
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} else {
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return $this->buildBasicPage($page);
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}
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} else {
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return 'javascript:;';
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}
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}
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// 构建基本分页
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private function buildBasicPage($page)
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{
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// 对于路径保留变量给予去除
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$qs = $_SERVER["QUERY_STRING"];
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if ((M == 'home' && Config::get('url_rule_type') == 2) || (M != 'home' && Config::get('app_url_type') == 2)) {
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$qs = preg_replace('/[&\?]?p=([\w\/\.]+)?&?/i', '', $qs);
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$qs = preg_replace('/[&\?]?s=([\w\/\.]+)?&?/i', '', $qs);
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}
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$qs = preg_replace('/[&\?]?page=([0-9]+)?/i', '', $qs);
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if ($page == 1) {
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if ($qs) {
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return $this->getPreUrl() . '?' . $qs;
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} else {
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return $this->getPreUrl();
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}
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} else {
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if ($qs) {
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return $this->getPreUrl() . '?' . $qs . '&page=' . $page;
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} else {
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return $this->getPreUrl() . '?page=' . $page;
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}
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}
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}
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// 分页条
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private function pageBar()
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{
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if (! $this->pageCount)
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return "<span class='page-none' style='color:#999'>未查询到任何数据!</span>";
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$string = "<span class='page-status'>{$this->pageStatus()}</span>";
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$string .= "<span class='page-index'><a href='" . $this->pageIndex() . "'>首页</a></span>";
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$string .= "<span class='page-pre'><a href='" . $this->pagePre() . "'>前一页</a></span>";
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$string .= "<span class='page-numbar'>{$this->pageNumBar()}</span>";
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$string .= "<span class='page-next'><a href='" . $this->pageNext() . "'>后一页</a></span>";
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$string .= "<span class='page-last'><a href='" . $this->pageLast() . "'>尾页</a></span>";
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// $string .= "<span class='page-select'>{$this->pageSelectBar()}</span>";
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return $string;
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}
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// 当前页面情况
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private function pageStatus()
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{
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if (! $this->pageCount)
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return;
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return "共" . $this->rowTotal . "条 当前" . $this->page . "/" . $this->pageCount . "页";
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}
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// 首页链接
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private function pageIndex()
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{
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if (! $this->pageCount)
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return $this->buildPath('');
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return $this->buildPath(1);
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}
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// 上一页链接
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private function pagePre()
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{
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if (! $this->pageCount)
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return $this->buildPath('');
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if ($this->page > 1) {
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$pre_page = $this->buildPath($this->page - 1);
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} else {
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$pre_page = $this->buildPath('');
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}
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return $pre_page;
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}
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// 下一页链接
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private function pageNext()
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{
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if (! $this->pageCount)
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return $this->buildPath('');
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if ($this->page < $this->pageCount) {
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$next_page = $this->buildPath($this->page + 1);
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} else {
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$next_page = $this->buildPath('');
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}
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return $next_page;
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}
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// 尾页
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private function pageLast()
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{
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if (! $this->pageCount)
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return $this->buildPath('');
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return $this->buildPath($this->pageCount);
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}
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// 数字分页,要修改数字显示的条数，请修改类头部num属性值
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private function pageNumBar()
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{
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if (! $this->pageCount)
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return;
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if (M == 'admin') {
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$total = 5;
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} else {
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$total = $this->num;
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}
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$halfl = intval($total / 2);
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$halfu = ceil($total / 2);
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$num_html = '';
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if ($this->page > $halfu) {
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$num_html .= '<span class="page-num">···</span>';
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}
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if ($this->page <= $halfl || $this->pageCount < $total) { // 当前页小于一半或页数小于总数
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for ($i = 1; $i <= $total; $i ++) {
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if ($i > $this->pageCount)
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break;
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if ($this->page == $i) {
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$num_html .= '<a href="' . $this->buildPath($i) . '" class="page-num page-num-current">' . $i . '</a>';
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} else {
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$num_html .= '<a href="' . $this->buildPath($i) . '" class="page-num">' . $i . '</a>';
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}
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}
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} elseif ($this->page + $halfl >= $this->pageCount) { // 当前页为倒数页以内
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for ($i = $this->pageCount - $total + 1; $i <= $this->pageCount; $i ++) {
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if ($this->page == $i) {
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$num_html .= '<a href="' . $this->buildPath($i) . '" class="page-num page-num-current">' . $i . '</a>';
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} else {
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$num_html .= '<a href="' . $this->buildPath($i) . '" class="page-num">' . $i . '</a>';
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}
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}
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} else { // 正常的前后各5页
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for ($i = $this->page - $halfl; $i <= $this->page + $halfl; $i ++) {
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if ($this->page == $i) {
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$num_html .= '<a href="' . $this->buildPath($i) . '" class="page-num page-num-current">' . $i . '</a>';
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} else {
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$num_html .= '<a href="' . $this->buildPath($i) . '" class="page-num">' . $i . '</a>';
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}
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}
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}
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if ($this->pageCount > $total && $this->page < $this->pageCount - $halfl) {
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$num_html .= '<span class="page-num">···</span>';
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}
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return $num_html;
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}
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// 跳转分页
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private function pageSelectBar()
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{
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if (! $this->pageCount)
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return;
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$select_html = '<select onchange="changepage(this)" lay-ignore>';
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for ($i = 1; $i <= $this->pageCount; $i ++) {
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if ($i == $this->page) {
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$select_html .= '<option value="' . $i . '" selected="selected">跳到' . $i . '页</option>';
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} else {
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$select_html .= '<option value="' . $i . '">跳到' . $i . '页</option>';
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}
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}
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$select_html .= '</select><script>function changepage(tag){window.location.href="' . $this->buildPath('"+tag.value+"') . '";}</script>';
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return $select_html;
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}
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} |