php如何实现计算农历，本文主要和大家分享php计算农历的实例代码，希望能帮助到大家。<?php

class Lunar {

var $MIN_YEAR = 1891;

var $MAX_YEAR = 2100;

var $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]));

}

function convertSolarMonthToLunar($year,$month) {

$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');

}

$month_days_ary = array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);

$dd = $month_days_ary[$month];

if($this->isLeapYear($year) && $month == 2) $dd++;

$lunar_ary = array();

for ($i = 1; $i < $dd; $i++) {

$array = $this->getLunarByBetween($year,$this->getDaysBetweenSolar($year, $month, $i, $yearData[1], $yearData[2]));

$array[] = $year . '-' . $month . '-' . $i;

$lunar_ary[$i] = $array;

}

return $lunar_ary;

}

/**

* 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];

}

/**

* 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 = explode('-', $res);

$year = $day[0];

$month= $day[1];

$day = $day[2];

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

}

/**

* 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

array_unshift($bitArray, '0');

}

$bitArray = array_slice($bitArray,0,($leapMonth==0?12:13));

for($i=0; $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

$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

$res +=$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

$t=$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

$my_year = $this->toYear($year);

array_push($lunarArray,$my_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;

}

//转换成中文年份

function toYear($year){

$arr = array("零","一","二","三","四","五","六","七","八","九");

$year_arr = str_split($year);

$str = $arr[$year_arr[0]].$arr[$year_arr[1]].$arr[$year_arr[2]].$arr[$year_arr[3]];

return $str;

}

//中文年份转换成数字

function toNumber($str){

$arr = array("零"=>'0',"一"=>'1',"二"=>'2',"三"=>'3',"四"=>'4',"五"=>'5',"六"=>'6',"七"=>'7',"八"=>'8',"九"=>'9');

$year_arr = preg_split('/(?

$str = $arr[$year_arr[0]].$arr[$year_arr[1]].$arr[$year_arr[2]].$arr[$year_arr[3]];

return $str;

}

/**

* 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 test(){

// $date = $this->convertSolarToLunar(2018,5,1); //公历转农历

// var_dump($date);

// // var_dump($this->toNumber($date[0]));exit;

// var_dump( count($this->getLunarMonths(2017)));exit;

// // $date = $this->getYearZodiac(2014,2,12); //根据阴历年获取生肖

// // var_dump($date);

// // $date = $this->isLeapYear(2014,2,12); //判断闰年

// // var_dump($date);

// // //其它功能也是这种调用方法

// // //如果是农历转公历，代码如下：

// $date = $this->convertLunarToSolar(2017,15,16); //农历转公历

// var_dump($date);

// }

// function check(){

// $date = $this->convertLunarToSolar(2017,7,29); //农历转公历

// var_dump($date);

// $a= $this->lunarNextCycleYearForLeap(2017,7,29,1);//闰年

// var_dump($a);

// // $a= $this->lunarNextCycleYearForNormal(2017,2,29,9);//平年

// // var_dump($a);

// $date = $this->convertLunarToSolar(2025,7,29); //农历转公历

// var_dump($date);

// }

/**

* 计算农历按N个月重复是哪天，没有对应的天数继续按周期循环

* e.g 农历2017年第10个月的5个月后是2018年第二个月

*注意农历有闰月的年份会出现13个月 不能简单认为一年有12个月

* 上述例子 传递 $year=2017,$month=10,$interval=5

* 返回 array(3) { [0]=> int(2018) [1]=> int(9) [2]=> int(30) } 分别对应 年，月，日，月份如果包含闰月 同理顺延

*/

function lunarNextCycleMonth($year,$month,$day,$interval=1){

if($year>$this->MAX_YEAR){

return false;//防止死循环;

}

for ($i=1;$i<=$interval;$i++){

$month++;

//计算此年最大月份，如果month比这个最大月份还大， 则轮为下年一月 ，即year+1,month=1

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

$maxMonth = ($yearData[0]==0?12:13);

if($month>$maxMonth){

$year++;

$month=1;

}

}

$lunarMonthDays=$this->getLunarMonthDays($year,$month);

//如果下个周期的月份没有对应的day，例如有些月份没有农历30号，则继续递归查找

if($lunarMonthDays

return $this->lunarNextCycleMonth($year,$month,$day,$interval);

}else{

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

}

}

/**

* 闰月重复按N年专用

* 计算农历按N年重复是哪天，没有对应的天数继续按周期循环，闰月一定是重复成闰月直到符合，例如农历2017年闰六月30号一定重复至有闰六月的年份并且含有30号

* e.g 农历2017年第10个月的5个月后是2018年第二个月

* 注意农历有闰月的年份会出现13个月 不能简单认为一年有12个月

* 上述例子 传递 $year=2017,$month=10,$interval=5

* 返回 array(3) { [0]=> int(2018) [1]=> int(9) [2]=> int(30) } 分别对应 年，月，日，月份如果包含闰月 同理顺延

*

*/

function lunarNextCycleYearForLeap($year,$month,$day,$interval=1){

if($year>$this->MAX_YEAR){

return false;//防止死循环;

}

//首先判断要想的日期是否闰月的日期,leapMonth的下一个月是闰月，例如leapMonth=6 那么7就是闰六月，后面月份顺推一个月，leapMonth=0代表没闰月

if($month==$this->getLeapMonth($year)+1){

//闰月的日期

while ($year<=$this->MAX_YEAR){

$year=$year+$interval;

//找到有相同闰月为止

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

if($yearData[0]!=0){

if($yearData[0]+1==$month){//有相同闰月的年份

//查看这个年份的闰月是否符合day数也相同

$lunarMonthDays=$this->getLunarMonthDays($year,$month);

//如果下个周期的月份没有对应的day，例如有些月份没有农历30号，则继续递归查找

if($lunarMonthDays

return $this->lunarNextCycleYearForLeap($year,$month,$day,$interval);

}else{

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

}

}

}

}

}

//2100年之后也找不到 返回没找到

return false;

}

/**

* 平月重复按N年专用

* 计算农历按N年重复是哪天，没有对应的天数继续按周期循环，闰月一定是重复成闰月直到符合，例如农历2017年闰六月30号一定重复至有闰六月的年份并且含有30号

* e.g 农历2017年第10个月的5个月后是2018年第二个月

* 注意农历有闰月的年份会出现13个月 不能简单认为一年有12个月

* 上述例子 传递 $year=2017,$month=10,$interval=5

* 返回 array(3) { [0]=> int(2018) [1]=> int(9) [2]=> int(30) } 分别对应 年，月，日，月份如果包含闰月 同理顺延

*/

function lunarNextCycleYearForNormal($year,$month,$day,$interval=1){

//平月的日期

//1.先找到对应是农历几月，由于有闰月的年份会从闰月开始后面的月份数+1，要取出剔除

$leapMonth=$this->getLeapMonth($year);

if($leapMonth>0){

//此年有闰月

if($month>$leapMonth){

$month--;//有闰月并且月份在闰月之后的月份数要-1才是真正的农历月

}

}

//2.下个周期年，同理看看是不是有闰月，从闰月开始后面的月份数+1才是平月真正的月份

//此时month的值等于月份数，例如农历平7月，month=7

$year=$year+$interval;//下个周期第几年

$leapMonth=$this->getLeapMonth($year);

if($leapMonth>0){

//此年有闰月

if($month>$leapMonth){

$month++;//有闰月并且月份在闰月之后的月份数要+1才是真正的需要匹配的月份

}

}

$lunarMonthDays=$this->getLunarMonthDays($year,$month);

//如果下个周期的月份没有对应的day，例如有些月份没有农历30号，则继续递归查找

if($lunarMonthDays

return $this->lunarNextCycleYearForNormal($year,$month,$day,$interval);

}else{

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

}

}

}

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