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PHP实现简单日历类编写
站长资源 2025/11/3 佚名
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DDR爱好者之家 Design By 杰米

用PHP实现日历类的编写，供大家参考，具体内容如下

calendar.class.php

<"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'])"Y");
  $this->month = isset($_GET["month"])"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=\''.$url.'">';
    for ($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=\''.$url.'">';
  for($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>
 <"calendar.class.php";
 $ca = new Calendar();
 $ca->showCalendar();
 "text-align: center">PHP实现简单日历类编写


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