<?php
class calendar{
private $year;
private $month;
private $day_week;
function __construct(){
$this->year=isset($_GET['year']) ? $_GET['year'] : date("Y");
$this->month=isset($_GET['month']) ? $_GET['month'] : date("m");
$this->day_week=date("w", mktime(0, 0, 0, $this->month, 1, $this->year));
}
private function xianDate(){
echo "<tr>";
echo "<td><a href='".$this->nextyear($this->year, $this->month)."'>"."<<<"."</a></td>";
echo "<td><a href='".$this->nextmonth($this->month, $this->year)."'>"."<<"."</td>";
echo "<td colspan='3'>".$this->year."年".$this->month."月</td>";
echo "<td><a href='".$this->aftermonth($this->month, $this->year)."'>".">>"."</td>";
echo "<td><a href='".$this->afteryear($this->year, $this->month)."'>".">>>"."</a></td>";
echo "</tr>";
}
private function weeks(){
$weeks=array("日", "一", "二", "三", "四", "五", "六");
echo "<tr>";
foreach($weeks as $value){
echo "<th>".$value."</th>";
}
echo "</tr>";
}
private function days(){
echo "<tr>";
for($i=0; $i<$this->day_week; $i++){
echo "<td> </td>";
}
for($j=1; $j <= date("t", mktime(0, 0, 0, $this->month, 1, $this->year)); $j++){
$i++;
if($j == date("d")){
echo "<td class='fontb'>".$j."</td>";
}else{
echo "<td>".$j."</td>";
}
if($i%7 == 0){
echo "</tr>";
}
}
while($i%7 != 0){
echo "<td> </td>";
$i++;
}
}
private function nextyear($year, $month){
if($year == 1970){
$year=1970;
}else{
$year--;
}
return "?year=".$year."&month=".$month;
}
private function afteryear($year, $month){
if($year == 2038){
$year=2038;
}else{
$year++;
}
return "?year=".$year."&month=".$month;
}
private function nextmonth($month, $year){
if($month == 1){
$year--;
$month=12;
}else{
$month--;
}
return "?year=".$year."&month=".$month;
}
private function aftermonth($month, $year){
if($month == 12){
$year++;
$month=1;
}else{
$month++;
}
return "?year=".$year."&month=".$month;
}
public function out(){
echo "<table align='center'>";
$this->xianDate();
$this->weeks();
$this->days();
echo "</table>";
}
}
?>
