89 lines
1.8 KiB
PHP
89 lines
1.8 KiB
PHP
<?php
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namespace top\extend;
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/**
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* 分页类
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* @author topnuomi 2018年11月28日
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*/
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class Page
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{
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/**
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* 记录总数
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* @var int
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*/
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private $total = 0;
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/**
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* 总页数
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* @var int
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*/
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private $totalPage = 0;
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/**
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* 当前页码
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* @var int
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*/
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public $page = 1;
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/**
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* 开始记录
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* @var int
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*/
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public $firstRow = 0;
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/**
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* 每页显示记录数
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* @var int
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*/
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public $listRow = 0;
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public function __construct($listRow, $total)
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{
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$this->listRow = $listRow;
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$this->total = $total;
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$this->page = (isset($_GET['p']) && $_GET['p']) ? (int)$_GET['p'] : ((isset($_POST['p']) && $_POST['p']) ? (int)$_POST['p'] : 1);
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$this->totalPage = $this->totalPage();
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$this->firstRow = $this->firstRow();
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}
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/**
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* 计算开始记录数
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* @return float|int
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*/
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private function firstRow()
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{
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return ($this->page - 1) * $this->listRow;
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}
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/**
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* 计算总页数
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* @return float
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*/
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private function totalPage()
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{
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return ceil($this->total / $this->listRow);
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}
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/**
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* 获取HTML
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* @return string
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*/
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public function html()
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{
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$uri = request()->uri(true);
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// 链接没有匹配&或?，配置了伪静态也就无所谓了
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$html = '<ul>';
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for ($i = 1; $i < $this->totalPage + 1; $i++) {
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if ($this->page == $i) {
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$html .= '<li class="active"><a href="' . url($uri) . '?p=' . $i . '">' . $i . '</a></li>';
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} else {
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$html .= '<li><a href="' . url($uri) . '?p=' . $i . '">' . $i . '</a></li>';
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}
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}
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$html .= '</ul>';
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return $html;
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}
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}
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