今天是圣诞节，用了半天做了一个节日祝福语和节日主题，效果还不错。可以在洋节和中国节日（包括农历节日 春节、中秋节等等）当天更换王柏元的博客的节日主题，并在站点公告里送上节日祝福语。 下面是关键的PHP类：Lunar。其中的getFestival()函数可传入的实参是不定数目的，可以通过传入的公历年月日，不传入默认是当前的服务器时间，函数实现了判断指定日期是否是已经设定的节日：比如中秋节、春节，同时还输出节日祝福语或诗句，返回的形式是一个数组。其余几个函数实现了获取公历和农历之间的转换，农历还支持返回当前日期农历的天干地支纪年以及生肖。 PHP获取农历和节日

<?php
/**
* Created by PhpStorm.
* project： wordpress-blog
* User: BrainWang
* Author_URL: http://wangbaiyuan.cn
* Date: 2015/12/25
* Time: 11:45
*/
class Lunar {
public $MIN_YEAR = 1891;
public $MAX_YEAR = 2100;
public $lunarInfo = array(array(0,2,9,21936),array(6,1,30,9656),array(0,2,17,9584),array(0,2,6,21168),array(5,1,26,43344),array(0,2,13,59728),array(0,2,2,27296),array(3,1,22,44368),array(0,2,10,43856),array(8,1,30,19304),array(0,2,19,19168),array(0,2,8,42352),array(5,1,29,21096),array(0,2,16,53856),array(0,2,4,55632),array(4,1,25,27304),array(0,2,13,22176),array(0,2,2,39632),array(2,1,22,19176),array(0,2,10,19168),array(6,1,30,42200),array(0,2,18,42192),array(0,2,6,53840),array(5,1,26,54568),array(0,2,14,46400),array(0,2,3,54944),array(2,1,23,38608),array(0,2,11,38320),array(7,2,1,18872),array(0,2,20,18800),array(0,2,8,42160),array(5,1,28,45656),array(0,2,16,27216),array(0,2,5,27968),array(4,1,24,44456),array(0,2,13,11104),array(0,2,2,38256),array(2,1,23,18808),array(0,2,10,18800),array(6,1,30,25776),array(0,2,17,54432),array(0,2,6,59984),array(5,1,26,27976),array(0,2,14,23248),array(0,2,4,11104),array(3,1,24,37744),array(0,2,11,37600),array(7,1,31,51560),array(0,2,19,51536),array(0,2,8,54432),array(6,1,27,55888),array(0,2,15,46416),array(0,2,5,22176),array(4,1,25,43736),array(0,2,13,9680),array(0,2,2,37584),array(2,1,22,51544),array(0,2,10,43344),array(7,1,29,46248),array(0,2,17,27808),array(0,2,6,46416),array(5,1,27,21928),array(0,2,14,19872),array(0,2,3,42416),array(3,1,24,21176),array(0,2,12,21168),array(8,1,31,43344),array(0,2,18,59728),array(0,2,8,27296),array(6,1,28,44368),array(0,2,15,43856),array(0,2,5,19296),array(4,1,25,42352),array(0,2,13,42352),array(0,2,2,21088),array(3,1,21,59696),array(0,2,9,55632),array(7,1,30,23208),array(0,2,17,22176),array(0,2,6,38608),array(5,1,27,19176),array(0,2,15,19152),array(0,2,3,42192),array(4,1,23,53864),array(0,2,11,53840),array(8,1,31,54568),array(0,2,18,46400),array(0,2,7,46752),array(6,1,28,38608),array(0,2,16,38320),array(0,2,5,18864),array(4,1,25,42168),array(0,2,13,42160),array(10,2,2,45656),array(0,2,20,27216),array(0,2,9,27968),array(6,1,29,44448),array(0,2,17,43872),array(0,2,6,38256),array(5,1,27,18808),array(0,2,15,18800),array(0,2,4,25776),array(3,1,23,27216),array(0,2,10,59984),array(8,1,31,27432),array(0,2,19,23232),array(0,2,7,43872),array(5,1,28,37736),array(0,2,16,37600),array(0,2,5,51552),array(4,1,24,54440),array(0,2,12,54432),array(0,2,1,55888),array(2,1,22,23208),array(0,2,9,22176),array(7,1,29,43736),array(0,2,18,9680),array(0,2,7,37584),array(5,1,26,51544),array(0,2,14,43344),array(0,2,3,46240),array(4,1,23,46416),array(0,2,10,44368),array(9,1,31,21928),array(0,2,19,19360),array(0,2,8,42416),array(6,1,28,21176),array(0,2,16,21168),array(0,2,5,43312),array(4,1,25,29864),array(0,2,12,27296),array(0,2,1,44368),array(2,1,22,19880),array(0,2,10,19296),array(6,1,29,42352),array(0,2,17,42208),array(0,2,6,53856),array(5,1,26,59696),array(0,2,13,54576),array(0,2,3,23200),array(3,1,23,27472),array(0,2,11,38608),array(11,1,31,19176),array(0,2,19,19152),array(0,2,8,42192),array(6,1,28,53848),array(0,2,15,53840),array(0,2,4,54560),array(5,1,24,55968),array(0,2,12,46496),array(0,2,1,22224),array(2,1,22,19160),array(0,2,10,18864),array(7,1,30,42168),array(0,2,17,42160),array(0,2,6,43600),array(5,1,26,46376),array(0,2,14,27936),array(0,2,2,44448),array(3,1,23,21936),array(0,2,11,37744),array(8,2,1,18808),array(0,2,19,18800),array(0,2,8,25776),array(6,1,28,27216),array(0,2,15,59984),array(0,2,4,27424),array(4,1,24,43872),array(0,2,12,43744),array(0,2,2,37600),array(3,1,21,51568),array(0,2,9,51552),array(7,1,29,54440),array(0,2,17,54432),array(0,2,5,55888),array(5,1,26,23208),array(0,2,14,22176),array(0,2,3,42704),array(4,1,23,21224),array(0,2,11,21200),array(8,1,31,43352),array(0,2,19,43344),array(0,2,7,46240),array(6,1,27,46416),array(0,2,15,44368),array(0,2,5,21920),array(4,1,24,42448),array(0,2,12,42416),array(0,2,2,21168),array(3,1,22,43320),array(0,2,9,26928),array(7,1,29,29336),array(0,2,17,27296),array(0,2,6,44368),array(5,1,26,19880),array(0,2,14,19296),array(0,2,3,42352),array(4,1,24,21104),array(0,2,10,53856),array(8,1,30,59696),array(0,2,18,54560),array(0,2,7,55968),array(6,1,27,27472),array(0,2,15,22224),array(0,2,5,19168),array(4,1,25,42216),array(0,2,12,42192),array(0,2,1,53584),array(2,1,21,55592),array(0,2,9,54560));

/\*\*
 \* 将阳历转换为阴历
 \* @param year 公历-年
 \* @param month 公历-月
 \* @param date 公历-日
 */
function convertSolarToLunar($year,$month,$date){
    //debugger;
    $yearData = $this->lunarInfo\[$year-$this->MIN_YEAR\];
    if($year==$this->MIN_YEAR&&$month<=2&&$date<=9){
        return array(1891,'正月','初一','辛卯',1,1,'兔');
    }
    return $this->getLunarByBetween($year,$this->getDaysBetweenSolar($year,$month,$date,$yearData\[1\],$yearData\[2\]));
}

/\*\*
 \* 将阴历转换为阳历
 \* @param year 阴历-年
 \* @param month 阴历-月，闰月处理：例如如果当年闰五月，那么第二个五月就传六月，相当于阴历有13个月，只是有的时候第13个月的天数为0
 \* @param date 阴历-日
 */
function convertLunarToSolar($year,$month,$date){
    $yearData = $this->lunarInfo\[$year-$this->MIN_YEAR\];
    $between = $this->getDaysBetweenLunar($year,$month,$date);
    $res = mktime(0,0,0,$yearData\[1\],$yearData\[2\],$year);

    $res = date('Y-m-d',$res+$between\*24\*60*60);

    $day        = split_date($res);
    $year        = $day\[0\];
    $month= $day\[1\];
    $day        = $day\[2\];

    return array($year, $month, $day);
}

/\*\*
 \* 判断是否是闰年
 \* @param year
 */
function isLeapYear($year){
    return (($year%4==0 && $year%100 !=0) || ($year%400==0));
}

/\*\*
 \* 获取干支纪年
 \* @param year
 */
function getLunarYearName($year){
    $sky = array('庚','辛','壬','癸','甲','乙','丙','丁','戊','己');
    $earth = array('申','酉','戌','亥','子','丑','寅','卯','辰','巳','午','未');

    $year = $year.'';
    return $sky\[$year{3}\].$earth\[$year%12\];
}

/\*\*
 \* 根据阴历年获取生肖
 \* @param year 阴历年
 */
function getYearZodiac($year){
    $zodiac = array('猴','鸡','狗','猪','鼠','牛','虎','兔','龙','蛇','马','羊');
    return $zodiac\[$year%12\];
}

/\*\*
 \* 获取阳历月份的天数
 \* @param year 阳历-年
 \* @param month 阳历-月
 */
function getSolarMonthDays($year,$month){
    $monthHash = array('1'=>31,'2'=>$this->isLeapYear($year)?29:28,'3'=>31,'4'=>30,'5'=>31,'6'=>30,'7'=>31,'8'=>31,'9'=>30,'10'=>31,'11'=>30,'12'=>31);
    return $monthHash\["$month"\];
}


/\*\*
 \* 获取阴历月份的天数
 \* @param year 阴历-年
 \* @param month 阴历-月，从一月开始
 */
function getLunarMonthDays($year,$month){
    $monthData = $this->getLunarMonths($year);
    return $monthData\[$month-1\];
}

/\*\*
 \* 获取阴历每月的天数的数组
 \* @param year
 */
function getLunarMonths($year){

    $yearData = $this->lunarInfo\[$year - $this->MIN_YEAR\];
    $leapMonth = $yearData\[0\];

    $bit = decbin($yearData\[3\]);
    for ($i = 0; $i < strlen($bit);$i ++) {
        $bitArray\[$i\] = substr($bit, $i, 1);
    }

    for($k=0,$klen=16-count($bitArray);$k<$klen;$k++){
        array_unshift($bitArray, '0');
    }

    $bitArray = array_slice($bitArray,0,($leapMonth==0?12:13));
    for($i=0; $i<count($bitArray); $i++){
        $bitArray\[$i\] = $bitArray\[$i\] + 29;
    }

    return $bitArray;
}

/\*\*
 \* 获取农历每年的天数
 \* @param year 农历年份
 */
function getLunarYearDays($year){
    $yearData = $this->lunarInfo\[$year-$this->MIN_YEAR\];
    $monthArray = $this->getLunarYearMonths($year);
    $len = count($monthArray);
    return ($monthArray\[$len-1\]==0?$monthArray\[$len-2\]:$monthArray\[$len-1\]);
}

function getLunarYearMonths($year){
    //debugger;
    $monthData = $this->getLunarMonths($year);
    $res=array();
    $temp=0;
    $yearData = $this->lunarInfo\[$year-$this->MIN_YEAR\];
    $len = ($yearData\[0\]==0?12:13);
    for($i=0;$i<$len;$i++){
        $temp=0;
        for($j=0;$j<=$i;$j++){
            $temp+=$monthData\[$j\];
        }
        array_push($res, $temp);
    }
    return $res;
}

/\*\*
 \* 获取闰月
 \* @param year 阴历年份
 */
function getLeapMonth($year){
    $yearData = $this->lunarInfo\[$year-$this->MIN_YEAR\];
    return $yearData\[0\];
}

/\*\*
 \* 计算阴历日期与正月初一相隔的天数
 \* @param year
 \* @param month
 \* @param date
 */
function getDaysBetweenLunar($year,$month,$date){
    $yearMonth = $this->getLunarMonths($year);

    $res=0;
    for($i=1;$i<$month;$i++){
        $res +=$yearMonth\[$i-1\];
    }
    $res+=$date-1;

    return $res;
}

/\*\*
 \* 计算2个阳历日期之间的天数
 \* @param year 阳历年
 \* @param cmonth
 \* @param cdate
 \* @param dmonth 阴历正月对应的阳历月份
 \* @param ddate 阴历初一对应的阳历天数
 */
function getDaysBetweenSolar($year,$cmonth,$cdate,$dmonth,$ddate){

    $a = mktime(0,0,0,$cmonth,$cdate,$year);
    $b = mktime(0,0,0,$dmonth,$ddate,$year);

    return ceil(($a-$b)/24/3600);
}

/\*\*
 \* 根据距离正月初一的天数计算阴历日期
 \* @param year 阳历年
 \* @param between 天数
 */
function getLunarByBetween($year,$between){
    //debugger;
    $lunarArray = array();
    $yearMonth=array();
    $t=0;
    $e=0;
    $leapMonth=0;
    $m='';

    if($between==0){
        array_push($lunarArray, $year,'正月','初一');
        $t = 1;
        $e = 1;
    }else{
        $year = $between>0? $year : ($year-1);
        $yearMonth = $this->getLunarYearMonths($year);
        $leapMonth = $this->getLeapMonth($year);
        $between = $between>0?$between : ($this->getLunarYearDays($year)+$between);

        for($i=0;$i<13;$i++){
            if($between==$yearMonth\[$i\]){
                $t=$i+2;
                $e=1;
                break;
            }else if($between<$yearMonth\[$i\]){
                $t=$i+1;
                $e=$between-(empty($yearMonth\[$i-1\])?0:$yearMonth\[$i-1\])+1;
                break;
            }
        }
        $m = ($leapMonth!=0&&$t==$leapMonth+1)?('闰'.$this->getCapitalNum($t- 1,true)):$this->getCapitalNum(($leapMonth!=0&&$leapMonth+1<$t?($t-1):$t),true);

        array_push($lunarArray,$year,$m,$this->getCapitalNum($e,false));
    }
    array_push($lunarArray,$this->getLunarYearName($year));//天干地支
    array_push($lunarArray,$t,$e);
    array_push($lunarArray,$this->getYearZodiac($year));//12生肖
    array_push($lunarArray,$leapMonth);//闰几月
    return $lunarArray;
}

/\*\*
 \* 获取数字的阴历叫法
 \* @param num 数字
 \* @param isMonth 是否是月份的数字
 */
function getCapitalNum($num,$isMonth){
    $isMonth = $isMonth || false;
    $dateHash=array('0'=>'','1'=>'一','2'=>'二','3'=>'三','4'=>'四','5'=>'五','6'=>'六','7'=>'七','8'=>'八','9'=>'九','10'=>'十 ');
    $monthHash=array('0'=>'','1'=>'正月','2'=>'二月','3'=>'三月','4'=>'四月','5'=>'五月','6'=>'六月','7'=>'七月','8'=>'八月','9'=>'九月','10'=>'十月','11'=>'冬月','12'=>'腊月');
    $res='';

    if($isMonth){
        $res = $monthHash\[$num\];
    }else{
        if($num<=10){
            $res = '初'.$dateHash\[$num\];
        }else if($num>10&&$num<20){
            $res = '十'.$dateHash\[$num-10\];
        }else if($num==20){
            $res = "二十";
        }else if($num>20&&$num<30){
            $res = "廿".$dateHash\[$num-20\];
        }else if($num==30){
            $res = "三十";
        }
    }
    return $res;
}
function getFestival(){
    $festivals=array(
        array(
            array(
                "date"=>"正月初一",
                "info"=>"春节",
                "wish"=>"春回大地风光好，福满人间喜事多。"
            ),
            array(
                "date"=>"正月初二",
                "info"=>"新春",
                "wish"=>"春回大地风光好，福满人间喜事多。"
            ),
            array(
                "date"=>"正月初三",
                "info"=>"新春",
                "wish"=>"春回大地风光好，福满人间喜事多。"
            ),
            array(
                "date"=>"正月十五",
                "info"=>"元宵节",
                "wish"=>"火树银花合，星桥铁锁开。"
            ),
            array(
                "date"=>"七月初七",
                "info"=>"七夕",
                "wish"=>"七夕今宵看碧霄，牵牛织女渡河桥。"
            ),
            array(
                "date"=>"八月十五",
                "info"=>"中秋",
                "wish"=>"但愿人长久，千里共婵娟！"
            ),
            array(
                "date"=>"腊月廿九",
                "info"=>"除夕",
                "wish"=>"爆竹声中一岁除，春风送暖入屠苏。"
            ),
            array(
                "date"=>"腊月三十",
                "info"=>"除夕",
                "wish"=>"爆竹声中一岁除，春风送暖入屠苏。"
            )

        ),
        array(
            array(
                "date"=>"1/1",
                "info"=>"元旦"
            ),
            array(
                "date"=>"2/14",
                "info"=>"情人节"
            ),
            array(
                "date"=>"10/1",
                "info"=>"国庆节"
            ),
            array(
                "date"=>"12/25",
            "info"=>"圣诞节",
            "wish"=>"Merry Christmas！"
            )
        )
    );



    $args = func\_get\_args();
    $y=isset($args\[0\])? $args\[0\]:date("Y");
    $m=isset($args\[1\])? $args\[1\]:date("m");
    $d=isset($args\[2\])? $args\[2\]:date("d");
    $result=array();
    $result\["is"\]=false;
    $ldate=$this->convertSolarToLunar($y,$m,$d);
    $day=$m."/".$d;
    $lday=$ldate\[1\]."".$ldate\[2\];
    for($i=0;$i<count($festivals);$i++){
        $festival=$festivals\[$i\];
        for($j=0;$j<count($festival);$j++){
            if($festival\[$j\]\["date"\]==$lday){
                $result\["is"\]=true;
                $result\["type"\]=0;
                $result\["info"\]=$festival\[$j\]\["info"\];
                $result\["wish"\]=$festival\[$j\]\["wish"\];
                return $result;
            }else if($festival\[$j\]\["date"\]==$day){
                $result\["is"\]=true;
                $result\["type"\]=1;
                $result\["info"\]=$festival\[$j\]\["info"\];
                $result\["wish"\]=$festival\[$j\]\["wish"\];
                return $result;
            }else{
                $result\["is"\]=false;
            }
        }
    }

    return $result;

}

}