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[$ttmpb]."</option>\r\n"; 
} 
echo " </select> <select name=\"year\" onchange=\"this.form.submit();\">";//打印年份，前后10年 
for($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>\r\n"; 
} 
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(); 
?>