calendar.class.php

复制代码 代码如下:

 class Calendar {
  private $year; //当前的年
  private $month; //当前的月
  private $start_weekday; //当月的第一天对应的是周几
  private $days; //当前月一共多少天

  function __construct(){
   $this->year=isset($_GET["year"]) ? $_GET["year"] : date("Y");
   $this->month=isset($_GET["month"]) ? $_GET["month"] : date("m");

   $this->start_weekday=date("w", mktime(0, 0, 0, $this->month, 1, $this->year));
   $this->days=date("t", mktime(0, 0, 0, $this->month, 1, $this->year));
  }

  function out(){
   echo '

  private function weeksList(){
   $week=array('日','一','二','三','四','五','六');

   echo '';
   for($i=0; $i    echo ''.$week[$i].'';

   echo '';
  }

  private function daysList(){
   echo '';
   //输出空格(当前一月第一天前面要空出来)
   for($j=0; $j<$this->start_weekday; $j++)
    echo ' ';

   for($k=1; $k<=$this->days; $k++){
    $j++;
    if($k==date('d'))
     echo ''.$k.'';
    else
     echo ''.$k.'';

    if($j%7==0)
     echo '';

   }

   //后面几个空格
   while($j%7!==0){
    echo ' ';
    $j++;
   }

   echo '';
  }

  private function prevYear($year, $month){
   $year=$year-1;

   if($year < 1970)
    $year = 1970;

   return "year={$year}&month={$month}"; 
  }

  private function prevMonth($year, $month){
   if($month == 1) {
    $year = $year -1;

    if($year < 1970)
     $year = 1970;

    $month=12;
   }else{
    $month--;
   }

   return "year={$year}&month={$month}"; 
  }

  private function nextYear($year, $month){
   $year = $year + 1;

   if($year > 2038)
    $year = 2038;

   return "year={$year}&month={$month}"; 
  }

  private function nextMonth($year, $month){
   if($month==12){
    $year++;

    if($year > 2100)
     $year=2100;

    $month=1;
   }else{
    $month++;
   }
   

   return "year={$year}&month={$month}"; 
  }

  private function chageDate($url=""){
   echo '';
   echo ''.'<<'.'';
   echo ''.'<'.'';
   echo '';
   echo '

   echo ''.'>>'.'';
   echo ''.'>'.'';
   echo '';
  }

 }
?>
 

 test.php

复制代码 代码如下:

 
 include "calendar.class.php";

 $calendar=new Calendar;

 $calendar->out();
?>