PHP实现简单日历类编写

时间：2021-05-26

用PHP实现日历类的编写，供大家参考，具体内容如下

calendar.class.php

<?php/** 创建一个日历类***/ //修改默认时区 date_default_timezone_set("PRC"); class Calendar { private $year; private $month; private $day; //当月总天数 private $first_week; //每月的第一天是星期几 //构造函数 function __construct() { $this->year = isset($_GET['year'])?$_GET['year']:date("Y"); $this->month = isset($_GET["month"])?$_GET["month"]:date("m"); $this->first_week = date("w", mktime(0, 0 ,0, $this->month, 1, $this->year)); $this->day = date("t", mktime(0, 0 ,0, $this->month, 1, $this->year)); } function showCalendar() { // echo $this->year."年".$this->month."月".$this->first_week."天".$this->day; echo "<table align='center'>"; //用表格输出 $this->chageDate("index.php"); //用于用户调整年月份 $this->weekList();//显示星期 $this->dayList(); //显示天数 echo "</table>"; } //1、显示星期 private function weekList() { $week = array("日","一","二","三","四","五","六"); echo "<tr>"; for ($i = 0; $i < count($week); $i++) { echo "<th>".$week[$i]."</th>"; } echo "</tr>"; } //2.显示天数 private function dayList() { $color = "#2ca50c"; echo "<tr>"; for ($i = 0; $i < $this->first_week; $i++) { //输出空格，弥补当前月空缺部分 echo "<td bgcolor='#2ca50c'> </td>"; } for ($k = 1; $i <= $this->day; $k++) { $i++; if ($k == date("d")) echo "<td id='nowd'>".$k."</td>"; //是今天，加效果 else echo "<td bgcolor=$color>".$k."</td>"; if ($i % 7 == 0) { echo "</tr><tr>"; //每7天一次换行 if ($i % 2 == 0) $color = "#2ca50c"; else $color = "#9ddb27"; //实现各行换色的效果 } } while ($i % 7 != 0) { //将剩余的空格补完 echo "<td bgcolor='#2ca50c'> </td>"; $i++; } echo "</tr>"; } //3、用于用户调整天数 private function chageDate($url="index.php") { echo "<tr>"; echo "<caption><h1>".$this->year."年".$this->month."月</h1></caption>"; echo "</tr>"; echo "<tr>"; echo "<td>"."<a href='?".$this->prevYear($this->year,$this->month)."'>"."<"."</a>"; echo "<td>"."<a href='?".$this->prevMonth($this->year,$this->month)."'>"."<<"."</a>"; echo "<td colspan='3'>"; echo '<select οnchange="window.location=\''.$url.'?year=\'+this.options[selectedIndex].value+\'&month='.$this->month.'\'">'; for ($year = 2038; $year >= 1970; $year--) { $selected = ($year == $this->year)?"selected":""; echo '<option '.$selected. ' value="'.$year.'">'.$year.'</option>'; //echo '<option '.$selected.' value="'.$year.'">'.$year.'</option>'; } echo "</select>"; echo '<select name="month" οnchange="window.location=\''.$url.'?year='.$this->year.'&month=\'+this.options[selectedIndex].value">'; for($month=1;$month <= 12;$month++){ $selected1 = ($month == $this->month) ? "selected" : ""; echo '<option '.$selected1.' value="'.$month.'">'.$month.'</option>'; } echo '</select>'; echo "</td>"; echo "<td>"."<a href='?".$this->nextMonth($this->year,$this->month)."'>".">>"."</a>"; echo "<td>"."<a href='?".$this->nextYear($this->year,$this->month)."'>".">"."</a>"; echo "</tr>"; } private function prevYear($year, $month) { //获取上一年的数据 $year--; if ($year < 1970) $year = 1970; return "year={$year}&month={$month}"; } private function prevMonth($year, $month) { if ($month == 1) { $year--; if ($year < 1970) $year = 1970; $month = 12; }else $month--; return "year={$year}&month={$month}"; } private function nextYear($year, $month) { //获取上一年的数据 $year++; if ($year > 2038) $year = 2038; return "year={$year}&month={$month}"; } private function nextMonth($year, $month) { if ($month == 12) { $year++; if ($year > 2038) $year = 2038; $month = 1; }else $month++; return "year={$year}&month={$month}"; } }

主页 index.php

<!doctype html><html><head><meta charset="utf-8"><title>日历显示</title><style> table { border:1px solid #050; margin: 100px auto; } th { width: 30px; background-color: #0CC; color: #fff; height: 30px; font-size: 20px; } #nowd { color: yellow; background: #F00; } td { width: 30px; text-align: center; height: 25px; color: #fff; } a { display: block; width: 35px; height: 35px; background: #0F9; text-decoration: none; text-align: center; line-height: 35px; } a:hover { background: #CF0; color: #fff; font-size: 20px; }</style></head> <body> <?php include "calendar.class.php"; $ca = new Calendar(); $ca->showCalendar(); ?></body></html>

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