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();  
?>