本篇文章為大家展示了使用PHP編寫一個日歷功能，內容簡明扼要并且容易理解，絕對能使你眼前一亮，通過這篇文章的詳細介紹希望你能有所收獲。
用PHP實現日歷類的編寫，供大家參考，具體內容如下
calendar.class.php
<?php
/*
* 創建一個日歷類
*
*
*/
//修改默認時區
date_default_timezone_set("PRC");
class Calendar {
private $year;
private $month;
private $day; //當月總天數
private $first_week; //每月的第一天是星期幾
//構造函數
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'>"; //用表格輸出
$this->chageDate("index.php"); //用于用戶調整年月份
$this->weekList();//顯示星期
$this->dayList(); //顯示天數
echo "</table>";
}
//1、顯示星期
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.顯示天數
private function dayList() {
$color = "#2ca50c";
echo "<tr>";
for ($i = 0; $i < $this->first_week; $i++) { //輸出空格，彌補當前月空缺部分
echo "<td bgcolor='#2ca50c'> </td>";
}
for ($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天一次換行
if ($i % 2 == 0) $color = "#2ca50c";
else $color = "#9ddb27"; //實現各行換色的效果
}
}
while ($i % 7 != 0) { //將剩余的空格補完
echo "<td bgcolor='#2ca50c'> </td>";
$i++;
}
echo "</tr>";
}
//3、用于用戶調整天數
private function chageDate($url="index.php") {
echo "<tr>";
echo "<caption><h2>".$this->year."年".$this->month."月</h2></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) { //獲取上一年的數據
$year--;
if ($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) { //獲取上一年的數據
$year++;
if ($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}";
}
}主頁 index.php
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>日歷顯示</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>
上述內容就是使用PHP編寫一個日歷功能，你們學到知識或技能了嗎？如果還想學到更多技能或者豐富自己的知識儲備，歡迎關注億速云行業資訊頻道。
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