php简单的日历程序代码
PHP提供了date()函数，该函数提供了丰富的日期处理功能。现在需要获得的数据有两个，第一个是当月的总天数；第二个是该月的第一天所在星期中的第几天，数字表示0（表示星期天）到6（表示星期六）。
通过date()函数可以很容易获得上面的数据
<?php
$month = $_GET['m'] ? $_GET['m'] : date('n');
$year = $_GET['y'] ? $_GET['y'] : date('Y');
$start_week = date('w', mktime(0, 0, 0, $month, 1, $year));
$day_num = date('t', mktime(0, 0, 0, $month, 1, $year));
$end = false;
?>
<table>
<tr>
<td>星期日</td><td>星期一</td><td>星期二</td><td>星期三</td><td>星期四</td><td>星期五</td><td>星期六</td>
</tr>
<tr>
<?php
for ($i = 0; $i < $start_week; $i++) {
echo "<td></td>";
}
$j = 1;
while ($j <= $day_num) {
echo "<td>$j</td>";
$week = ($start_week + $j - 1) % 7;
if ($week == 6) {
echo "nt</tr>n";
if ($j != $day_num) echo "t<tr>ntt";
else $end = true;
}
$j++;
}
while ($week % 7 != 6) {
echo "<td></td>";
$week++;
}
if (!$end) echo "n</tr>";
?>
</table>高级一点类
<?php
class Calendar {
private $year;
private $month;
private $weeks = array(
'日',
'一',
'二',
'三',
'四',
'五',
'六'
);
function __construct($options = array()) {
$this->year = date('Y');
$this->month = date('m');
$vars = get_class_vars(get_class($this));
foreach ($options as $key => $value) {
if (array_key_exists($key, $vars)) {
$this->$key = $value;
}
}
}
function display() {
echo '<table class="calendar">';
$this->showChangeDate();
$this->showWeeks();
$this->showDays($this->year, $this->month);
echo '</table>';
}
private function showWeeks() {
echo '<tr>';
foreach ($this->weeks as $title) {
echo '<th>' . $title . '</th>';
}
echo '</tr>';
}
private function showDays($year, $month) {
$firstDay = mktime(0, 0, 0, $month, 1, $year);
$starDay = date('w', $firstDay);
$days = date('t', $firstDay);
echo '<tr>';
for ($i = 0; $i < $starDay; $i++) {
echo '<td> </td>';
}
for ($j = 1; $j <= $days; $j++) {
$i++;
if ($j == date('d')) {
echo '<td class="today">' . $j . '</td>';
} else {
echo '<td>' . $j . '</td>';
}
if ($i % 7 == 0) {
echo '</tr><tr>';
}
}
echo '</tr>';
}
private function showChangeDate() {
$url = basename($_SERVER['PHP_SELF']);
echo '<tr>';
echo '<td><a href="?' . $this->preYearUrl($this->year, $this->month) . '">' . '<<' . '</a></td>';
echo '<td><a href="?' . $this->preMonthUrl($this->year, $this->month) . '">' . '<' . '</a></td>';
echo '<td colspan="3"><form>';
echo '<select name="year" onchange="window.location=''.$url.' ? year = '+this.options[selectedIndex].value+' & month = '.$this->month.''">';
for ($ye = 1970; $ye <= 2038; $ye++) {
$selected = ($ye == $this->year) ? 'selected' : '';
echo '<option ' . $selected . ' value="' . $ye . '">' . $ye . '</option>';
}
echo '</select>';
echo '<select name="month" onchange="window.location=''.$url.' ? year = '.$this->year.' & month = '+this.options[selectedIndex].value+''">';
for ($mo = 1; $mo <= 12; $mo++) {
$selected = ($mo == $this->month) ? 'selected' : '';
echo '<option ' . $selected . ' value="' . $mo . '">' . $mo . '</option>';
}
echo '</select>';
echo '</form></td>';
echo '<td><a href="?' . $this->nextMonthUrl($this->year, $this->month) . '">' . '>' . '</a></td>';
echo '<td><a href="?' . $this->nextYearUrl($this->year, $this->month) . '">' . '>>' . '</a></td>';
echo '</tr>';
}
private function preYearUrl($year, $month) {
$year = ($this->year <= 1970) ? 1970 : $year - 1;
return 'year=' . $year . '&month=' . $month;
}
private function nextYearUrl($year, $month) {
$year = ($year >= 2038) ? 2038 : $year + 1;
return 'year=' . $year . '&month=' . $month;
}
private function preMonthUrl($year, $month) {
if ($month == 1) {
$month = 12;
$year = ($year <= 1970) ? 1970 : $year - 1;
} else {
$month--;
}
return 'year=' . $year . '&month=' . $month;
}
private function nextMonthUrl($year, $month) {
if ($month == 12) {
$month = 1;
$year = ($year >= 2038) ? 2038 : $year + 1;
} else {
$month++;
}
return 'year=' . $year . '&month=' . $month;
}
}
?>调用方法
<?php
$params = array();
if (isset($_GET['year']) && isset($_GET['month'])) {
$params = array(
'year' => $_GET['year'],
'month' => $_GET['month'],
);
}
$params['url'] = 'demo.php';
require_once 'calendar.class.php';
?>
<html>
<head>
<title>日历demo</title>
<meta http-equiv="Content-Type" content="text/html" charset="UTF-8" />
<style type="text/css">
table.calendar {
border: 1px solid #050;
}
.calendar th, .calendar td {
width:30px;
text-align:center;
}
.calendar th {
background-color:#050;
color:#fff;
}
.today{
color:#fff;
background-color:#050;
}
</style>
</head>
<body>
<div style="align:center">
<?php
$cal = new Calendar($params);
$cal->display();
?>
</div>
</body>
</html>本文地址：http://www.phprm.com/frame/php1005320.html
转载随意，但请附上文章地址:-)