PHP完整的日历类(CLASS)

<?php 
class calendar{ 
/* 
* www.jb51.net修正版
*/ 
var $year,$month,$day; 
var $week=array("星期日","星期一","星期二","星期三","星期四","星期五","星期六"); 
var $_month=array( 
"01"=>"一月", 
"02"=>"二月", 
"03"=>"三月", 
"04"=>"四月", 
"05"=>"五月", 
"06"=>"六月", 
"07"=>"七月", 
"08"=>"八月", 
"09"=>"九月", 
"10"=>"十月", 
"11"=>"十一月", 
"12"=>"十二月" 
); 
//设置年份 
function setyear($year){ 
$this->year=$year; 
} 
//获得年份 
function getyear(){ 
return $this->year; 
} 
//设置月份 
function setmonth($month){ 
$this->month=$month; 
} 
//获得月份 
function getmonth(){ 
return $this->month; 
} 
//设置日期 
function setday($day){ 
$this->day=$day; 
} 
//获得日期 
function getday(){ 
return $this->day; 
} 
//打印日历 
function out(){ 
$this->_env(); 
$week=$this->getweek($this->year,$this->month,$this->day);//获得日期为星期几 （例如今天为2003-07-18，星期五） 
$fweek=$this->getweek($this->year,$this->month,1); //获得此月第一天为星期几 
echo "<div style="margin:0;border:1 solid black;width:300;font:9pt"><form action=$_server[php_self] method="post" style="margin:0"><select name="month" onchange="this.form.submit();">"; 
for($ttmpa=1;$ttmpa<13;$ttmpa++){//打印12个月 
$ttmpb=sprintf("%02d",$ttmpa); 
if(strcmp($ttmpb,$this->month)==0){ 
$select="selected style="background-color:#c0c0c0""; 
}else{ 
$select=""; 
} 
echo "<option value=".$ttmpb".$select>".$this->month[$ttmpb]."</option>rn"; 
} 
echo " </select> <select name="year" onchange="this.form.submit();">";//打印年份，前后10年 
for($ctmpa=$this->year-10;$ctmpa<$this->year+10;$ctmpa++){ 
if($ctmpa>2037){ 
break; 
} 
if($ctmpa<1970){ 
continue; 
} 
if(strcmp($ctmpa,$this->year)==0){ 
$select="selected style="background-color:#c0c0c0""; 
}else{ 
$select=""; 
} 
echo "<option value="$ctmpa" $select>$ctmpa</option>rn"; 
} 
echo "</select> 
</form> 
<table border=0 align=center>"; 
for($tmpa=0;$tmpa<count($this->week);$tmpa++){//打印星期标头 
echo "<td>".$this->week[$tmpa]; 
} 
for($tmpb=1;$tmpb<=date("t",mktime(0,0,0,$this->month,$this->day,$this->year));$tmpb++){//打印所有日期 
if(strcmp($tmpb,$this->day)==0){ //获得当前日期，做标记 
$flag=" bgcolor='#ff0000'"; 
}else{ 
$flag=' bgcolor=#ffffff'; 
} 
if($tmpb==1){ 
echo "<tr>"; //补充打印 
for($tmpc=0;$tmpc<$fweek;$tmpc++){ 
echo "<td>"; 
} 
} 
if(strcmp($this->getweek($this->year,$this->month,$tmpb),0)==0){ 
echo "<tr><td align=center $flag>$tmpb"; 
}else{ 
echo "<td align=center $flag>$tmpb"; 
} 
} 
echo "</table></div>"; 
} 
//获得方法内指定的日期的星期数 
function getweek($year,$month,$day){ 
$week=date("w",mktime(0,0,0,$month,$day,$year));//获得星期 
return $week;//获得星期 
} 
function _env(){ 
if(isset($_post["month"])){ //有指定月 
$month=$_post["month"]; 
}else{ 
$month=date("m"); //默认为本月 
} 
if(isset($_post["year"])){ //有指年 
$year=$_post["year"]; 
}else{ 
$year=date("y"); //默认为本年 
} 
$this->setyear($year); 
$this->setmonth($month); 
$this->setday(date("d")); 
} 
} 
$d=new calendar; 
$d->out(); 
?>