前言
如何计算年龄？我的第一直觉做法：（当前时间戳 - 出生时的时间戳）/ (365*86400) 所得结果向下取整。后来发现这种做法获得的结果不准确，不是多了一岁就是少了一岁，不能简单粗暴的这么处理，只能把相差的年数月数天数精确的算出来。我一开始以为这个很简单，这个问题不值得记录下来，后来发现不是这么一回事，实现起来没有那么顺利，对我而言。
闰年
要计算2个日期之间的相差的时间，肯定需要知道闰年是咋回事。地球绕太阳公转一圈的时间即为公历一年的时间，地球公转花的时间大概是365天5小时48分，这样每隔4年差不多公历时间多出了一天，这一年天文学家称之为闰年，闰年的2月份是29天。前人总结出来闰年的判断方法：年份能被400整除或者年份不能被100整除且能被4整除。（备注：我对公农历不是很了解，这些信息也是从网上找到的，我对这些不是很感兴趣，没有花更多的时间深入的了解）
实现
先算出相差的年数，再算相差的月数，最后计算相差的天数，思路很简单，真正的实现不是一帆风顺。
代码
/**
* @desc 计算年龄
* 计算年份->计算月份->计算天数
*
* @date 2015-09-22
* @author WadeYu
*/ var getDiffYmdBetweenDate = function(sDate1,sDate2){
var fixDate = function(sDate){
var aD = sDate.split('-');
for(var i = 0; i < aD.length; i++){
aD[i] = fixZero(parseInt(aD[i]));
}
return aD.join('-');
};
var fixZero = function(n){
return n < 10 ? '0'+n : n;
};
var fixInt = function(a){
for(var i = 0; i < a.length; i++){
a[i] = parseInt(a[i]);
}
return a;
};
var getMonthDays = function(y,m){
var aMonthDays = [0,31,28,31,30,31,30,31,31,30,31,30,31];
if((y%400 == 0) || (y%4==0 && y%100!=0)){
aMonthDays[2] = 29;
}
return aMonthDays[m];
};
var checkDate = function(sDate){
};
var y = 0;
var m = 0;
var d = 0;
var sTmp;
var aTmp;
sDate1 = fixDate(sDate1);
sDate2 = fixDate(sDate2);
if(sDate1 > sDate2){
sTmp = sDate2;
sDate2 = sDate1;
sDate1 = sTmp;
}
var aDate1 = sDate1.split('-');
aDate1 = fixInt(aDate1);
var aDate2 = sDate2.split('-');
aDate2 = fixInt(aDate2);
//计算相差的年份
/*aTmp = [aDate1[0]+1,fixZero(aDate1[1]),fixZero(aDate1[2])];
while(aTmp.join('-') <= sDate2){
y++;
aTmp[0]++;
}*/
y = aDate2[0] - aDate1[0];
if( sDate2.replace(aDate2[0],'') < sDate1.replace(aDate1[0],'')){
y = y - 1;
}
//计算月份
aTmp = [aDate1[0]+y,aDate1[1],fixZero(aDate1[2])];
while(true){
if(aTmp[1] == 12){
aTmp[0]++;
aTmp[1] = 1;
}else{
aTmp[1]++;
}
if(([aTmp[0],fixZero(aTmp[1]),aTmp[2]]).join('-') <= sDate2){
m++;
} else {
break;
}
}
//计算天数
aTmp = [aDate1[0]+y,aDate1[1]+m,aDate1[2]];
if(aTmp[1] > 12){
aTmp[0]++;
aTmp[1] -= 12;
}
while(true){
if(aTmp[2] == getMonthDays(aTmp[0],aTmp[1])){
aTmp[1]++;
aTmp[2] = 1;
} else {
aTmp[2]++;
}
sTmp = ([aTmp[0],fixZero(aTmp[1]),fixZero(aTmp[2])]).join('-');
if(sTmp <= sDate2){
d++;
} else {
break;
}
}
return {y:y,m:m,d:d};
}; var aTest = [
['1984-9-17','2015-8-15'],
['1984-9-17','1985-9-18'],
['1984-9-17','1984-10-17'],
['1984-9-17','1984-10-10'],
];
for(var i = 0; i < aTest.length; i++){
console.log(aTest[i][0]+':'+aTest[i][1]);
console.log(getDiffYmdBetweenDate(aTest[i][0],aTest[i][1]));
}
后记
1.这个问题的实现花了一些时间思考，一开始不是很想记录下，后来想想毕竟是花了时间思考，现在健忘比较严重，还是记录下吧。
2.跟同事讨论，年龄计算是否需要包含当天生日那天，讨论的结果是不包含，没过生日这天年龄不增加，也算刷新了一个基本常识吧。
3.能算出相差的年数月数天数，如果只需要计算总天数或者总月数就很简单了。
4.农历年份会变化，不能根据农历日期来算年龄
5.PHP农历公历转换类，感谢此类的作者
<?php
/**
* 阴历，阳历，日历转换
*/
class o_calendar {
public static $MIN_YEAR = 1600;
public static $MAX_YEAR = 2200;
//public static $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(8,1,31,19304),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));
public static $lunarInfo = array(array(0,2,15,9680),array(0,2,3,37584),array(3,1,23,51544),array(0,2,11,43344),array(7,1,31,46248),array(0,2,18,27296),array(0,2,7,44368),array(6,1,28,21928),array(0,2,16,19360),array(0,2,4,42416),array(4,1,25,21176),array(0,2,13,21168),array(0,2,2,26928),array(2,1,21,29864),array(0,2,9,27296),array(6,1,29,44368),array(0,2,17,39760),array(0,2,6,19296),array(4,1,26,42352),array(0,2,14,42224),array(0,2,4,21088),array(3,1,22,59696),array(0,2,10,54576),array(8,1,31,23208),array(0,2,19,22176),array(0,2,7,38608),array(5,1,28,19176),array(0,2,16,19152),array(0,2,5,42192),array(4,1,24,53864),array(0,2,12,45648),array(0,2,1,54560),array(2,1,21,55968),array(0,2,8,46496),array(6,1,29,38352),array(0,2,17,38320),array(0,2,7,18864),array(5,1,26,42168),array(0,2,14,42160),array(0,2,3,43600),array(3,1,23,46376),array(0,2,10,27968),array(0,1,30,44448),array(0,2,18,43872),array(0,2,8,37744),array(5,1,28,18808),array(0,2,16,18800),array(0,2,5,25776),array(4,1,25,27216),array(0,2,11,55888),array(0,2,1,27424),array(1,1,21,43872),array(0,2,9,43744),array(6,1,29,37608),array(0,2,17,37600),array(0,2,6,51552),array(5,1,26,54440),array(0,2,13,54432),array(0,2,2,55888),array(3,1,23,23208),array(0,2,11,22176),array(8,1,30,42704),array(0,2,18,42448),array(0,2,8,37584),array(6,1,28,43352),array(0,2,15,43344),array(0,2,4,46240),array(4,1,24,46416),array(0,2,12,44368),array(0,2,1,21920),array(2,1,21,42448),array(0,2,9,42416),array(7,1,30,21176),array(0,2,17,21104),array(0,2,6,26928),array(5,1,26,29864),array(0,2,14,27296),array(0,2,2,44368),array(3,1,23,19880),array(0,2,11,19296),array(8,1,31,42352),array(0,2,18,42208),array(0,2,7,53856),array(6,1,27,59696),array(0,2,15,54560),array(0,2,3,55968),array(4,1,24,23376),array(0,2,12,22224),array(0,2,2,19168),array(3,1,21,42216),array(0,2,9,42192),array(7,1,29,53848),array(0,2,17,43600),array(0,2,5,46368),array(5,1,25,54944),array(0,2,13,46496),array(0,2,3,21968),array(3,1,23,19160),array(0,2,11,18864),array(7,1,31,42168),array(0,2,19,42160),array(0,2,8,43600),array(6,1,28,46376),array(0,2,16,27936),array(0,2,5,44384),array(4,1,25,21936),array(0,2,13,37744),array(0,2,3,18800),array(3,1,23,42168),array(0,2,10,25776),array(7,1,30,27216),array(0,2,17,55888),array(0,2,7,23200),array(5,1,26,43856),array(0,2,14,43744),array(0,2,4,21216),array(3,1,24,51568),array(0,2,11,51552),array(8,1,31,54440),array(0,2,19,54432),array(0,2,8,54608),array(6,1,28,23208),array(0,2,16,22176),array(0,2,5,42704),array(4,1,26,21224),array(0,2,13,21200),array(0,2,2,43344),array(2,1,22,54440),array(0,2,10,45728),array(7,1,29,46416),array(0,2,17,44368),array(0,2,7,19872),array(5,1,27,42448),array(0,2,14,42416),array(0,2,4,21168),array(4,1,24,43192),array(0,2,12,26928),array(9,1,31,27288),array(0,2,19,27296),array(0,2,8,43856),array(6,1,29,19880),array(0,2,16,19296),array(0,2,5,42352),array(4,1,26,20848),array(0,2,13,53600),array(0,2,1,59696),array(3,1,22,27280),array(0,2,9,55968),array(7,1,30,23376),array(0,2,17,22224),array(0,2,7,19168),array(5,1,27,42216),array(0,2,15,41680),array(0,2,3,53584),array(4,1,23,54440),array(0,2,11,46368),array(9,1,31,54928),array(0,2,18,44448),array(0,2,8,21968),array(6,1,29,10968),array(0,2,17,17840),array(0,2,5,41648),array(5,1,25,45400),array(0,2,13,43344),array(0,2,2,46368),array(2,1,21,46480),array(0,2,9,44384),array(7,1,30,21936),array(0,2,18,21360),array(0,2,7,17776),array(5,1,27,25272),array(0,2,15,21168),array(0,2,4,26960),array(3,1,23,27816),array(0,2,11,23200),array(10,1,31,43856),array(0,2,19,42704),array(0,2,8,19168),array(6,1,28,42352),array(0,2,16,42336),array(0,2,5,53920),array(5,1,24,59728),array(0,2,12,54608),array(0,2,2,23200),array(3,1,22,43856),array(0,2,9,42704),array(7,1,30,19176),array(0,2,18,19120),array(0,2,7,43216),array(5,1,26,53864),array(0,2,14,45728),array(0,2,3,46416),array(4,1,24,22184),array(0,2,11,19872),array(0,1,31,38320),array(2,1,21,19128),array(0,2,9,18864),array(6,1,28,43192),array(0,2,16,25776),array(0,2,5,27280),array(4,1,25,46416),array(0,2,13,27472),array(0,2,3,11168),array(2,1,23,38320),array(0,2,11,37744),array(7,1,31,20848),array(0,2,18,53600),array(0,2,7,58544),array(5,1,28,27280),array(0,2,14,55952),array(0,2,4,23376),array(3,1,25,11112),array(0,2,13,10976),array(0,2,1,37600),array(2,1,21,53608),array(0,2,9,51536),array(6,1,29,54440),array(0,2,16,46240),array(0,2,5,46736),array(4,1,26,22224),array(0,2,14,21936),array(0,2,3,9680),array(3,1,23,41688),array(0,2,11,37552),array(7,1,31,43352),array(0,2,18,43344),array(0,2,7,46240),array(5,1,27,46416),array(0,2,15,44368),array(0,2,4,21936),array(4,1,25,9656),array(0,2,13,9584),array(9,2,2,21176),array(0,2,20,21168),array(0,2,9,26960),array(6,1,29,27816),array(0,2,17,23200),array(0,2,5,43856),array(4,1,26,21352),array(0,2,14,19168),array(0,2,3,42352),array(3,1,23,21168),array(0,2,10,53856),array(7,1,30,59728),array(0,2,18,54608),array(0,2,7,23200),array(5,1,27,43728),array(0,2,15,38352),array(0,2,5,19168),array(4,1,24,42200),array(0,2,12,42192),array(8,2,1,53848),array(0,2,20,45712),array(0,2,8,46416),array(7,1,29,22184),array(0,2,17,11680),array(0,2,6,38320),array(5,1,26,19128),array(0,2,14,18864),array(0,2,3,42160),array(3,1,23,45656),array(0,2,10,27216),array(8,1,30,44360),array(0,2,18,27472),array(0,2,8,11104),array(5,1,27,38320),array(0,2,15,37744),array(0,2,5,18800),array(4,1,25,25776),array(0,2,11,54432),array(10,1,31,59984),array(0,2,19,55952),array(0,2,9,23248),array(6,1,29,11112),array(0,2,17,10976),array(0,2,6,37600),array(5,1,26,51560),array(0,2,13,51536),array(0,2,2,54432),array(3,1,22,55888),array(0,2,10,46672),array(7,1,30,22224),array(0,2,18,21936),array(0,2,8,9680),array(5,1,28,37592),array(0,2,15,37552),array(0,2,4,43344),array(4,1,24,46248),array(0,2,12,46240),array(0,1,31,46416),array(2,1,21,22184),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(8,1,31,19304),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),array(7,1,29,55952),array(0,2,17,46496),array(0,2,7,21968),array(5,1,28,19160),array(0,2,15,18864),array(0,2,4,42160),array(4,1,24,53848),array(0,2,12,43600),array(9,1,31,46376),array(0,2,19,27936),array(0,2,8,44384),array(6,1,29,21936),array(0,2,16,37744),array(0,2,6,18800),array(4,1,26,25784),array(0,2,14,21680),array(0,2,2,27216),array(3,1,22,27944),array(0,2,10,27296),array(7,1,30,43856),array(0,2,17,43728),array(0,2,7,21216),array(5,1,27,51568),array(0,2,15,43360),array(0,2,3,54432),array(4,1,23,59984),array(0,2,11,55632),array(0,2,1,23200),array(0,2,19,22176),array(0,2,8,42704),array(6,1,29,21224),array(0,2,17,21200),array(0,2,5,43216),array(5,1,25,54440),array(0,2,13,45728),array(0,2,2,46416),array(2,1,22,22184),array(0,2,10,21920),array(7,1,30,42448),array(0,2,18,42416),array(0,2,7,21168),array(5,1,27,43192),array(0,2,15,26800),array(0,2,4,29328),array(4,1,23,46416),array(0,2,11,27472),array(0,2,1,11680),array(0,2,20,19296),array(0,2,8,42352),array(6,1,29,20848),array(0,2,16,53600),array(0,2,5,59568),array(5,1,25,27280),array(0,2,12,55952),array(0,2,2,23376),array(3,1,23,11112),array(0,2,10,10976),array(7,1,30,41704),array(0,2,18,41680),array(0,2,7,53584),array(6,1,26,54440),array(0,2,14,46368),array(0,2,3,54928),array(4,1,24,23248),array(0,2,11,21936),array(10,2,1,10968),array(0,2,20,17840),array(0,2,9,41648),array(6,1,28,43352),array(0,2,16,43344),array(0,2,5,46240),array(5,1,25,46416),array(0,2,12,44368),array(0,2,2,21936),array(3,1,23,9656),array(0,2,11,17776),array(7,1,30,25272),array(0,2,18,21168),array(0,2,7,26960),array(6,1,27,27816),array(0,2,14,23200),array(0,2,3,43856),array(4,1,24,21352),array(0,2,12,19168),array(0,1,31,42352),array(2,1,21,21168),array(0,2,8,53920),array(6,1,28,59728),array(0,2,15,54608),array(0,2,5,23200),array(5,1,25,43856),array(0,2,13,42704),array(0,2,2,19168),array(3,1,22,42328),array(0,2,10,42192),array(7,1,30,53848),array(0,2,17,45712),array(0,2,6,46416),array(6,1,27,22184),array(0,2,15,11680)); /**
* 将阳历转换为阴历
* @param year 公历-年
* @param month 公历-月
* @param date 公历-日
*/
public static function convertSolarToLunar($year,$month,$date){
$yearData = self::$lunarInfo[$year-self::$MIN_YEAR];
if($year==self::$MIN_YEAR&&$month<=2&&$date<=9){
return array('1891-01-01',false);
}
$ret = self::getLunarByBetween($year,self::getDaysBetweenSolar($year,$month,$date,$yearData[1],$yearData[2]));
$ret[0] = fn::formatDate($ret[0]);
return $ret;
} /**
* 将阴历转换为阳历
* @param year 阴历-年
* @param month 阴历-月，闰月处理：例如如果当年闰五月，那么第二个五月就传六月，相当于阴历有13个月，只是有的时候第13个月的天数为0
* @param date 阴历-日
*/
public static function convertLunarToSolar($year,$month,$date){
$yearData = self::$lunarInfo[$year-self::$MIN_YEAR];
$between = self::getDaysBetweenLunar($year,$month,$date);
$res = mktime(0,0,0,$yearData[1],$yearData[2],$year); return date('Y-m-d',$res+$between*24*60*60);
} /**
* 判断是否是闰年
* @param year
*/
public static function isLeapYear($year){
return (($year%4==0 && $year%100 !=0) || ($year%400==0));
} /**
* 获取干支纪年
* @param year
*/
public static 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
*/
public static 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
*/
public static function getSolarMonthDays($year,$month){
$monthHash = array('1'=>31,'2'=>self::isLeapYear($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
*/
public static function getLunarMonthDays($year,$month){
$monthData = self::getLunarMonths($year);
return $monthData[$month-1];
} /**
* 获取阴历每月的天数的数组
* @param year
*/
public static function getLunarMonths($year){ $yearData = self::$lunarInfo[$year - self::$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 $bitArray;
} /**
* 获取农历每年的天数
* @param year 农历年份
*/
public static function getLunarYearDays($year){
$yearData = self::$lunarInfo[$year-self::$MIN_YEAR];
$monthArray = self::getLunarYearMonths($year);
$len = count($monthArray);
return ($monthArray[$len-1]==0?$monthArray[$len-2]:$monthArray[$len-1]);
} public static function getLunarYearMonths($year){
//debugger;
$monthData = self::getLunarMonths($year);
$res=array();
$temp=0;
$yearData = self::$lunarInfo[$year-self::$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 $res;
} /**
* 获取闰月
* @param year 阴历年份
*/
public static function getLeapMonth($year){
$yearData = self::$lunarInfo[$year-self::$MIN_YEAR];
return $yearData[0];
} /**
* 计算阴历日期与正月初一相隔的天数
* @param year
* @param month
* @param date
*/
public static function getDaysBetweenLunar($year,$month,$date){
$yearMonth = self::getLunarMonths($year); $res=0;
for($i=1;$i<$month;$i++){
$res +=$yearMonth[$i-1];
}
$res+=$date-1; return $res;
} /**
* 计算2个阳历日期之间的天数
* @param year 阳历年
* @param cmonth
* @param cdate
* @param dmonth 阴历正月对应的阳历月份
* @param ddate 阴历初一对应的阳历天数
*/
public static function getDaysBetweenSolar($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
*/
public static function getLunarByBetween($year,$between){
//debugger;
$lunarArray = array();
$yearMonth=array();
$t=0;
$e=0;
$leapMonth=0;
$m='';
$isLeap = false;
if($between==0){
array_push($lunarArray, $year,'正月','初一');
$t = 1;
$e = 1;
$month = $t;
}else{
$year = $between>0? $year : ($year-1);
$yearMonth = self::getLunarYearMonths($year);
$leapMonth = self::getLeapMonth($year);
$between = $between>0?$between : (self::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;
}
} if ($leapMonth!=0&&$t==$leapMonth+1) {
$month = $t- 1;
$isLeap = true;
}else{
$month = $leapMonth!=0&&$leapMonth+1<$t?($t-1):$t;
$isLeap;
}
//$m = ($leapMonth!=0&&$t==$leapMonth+1)?('闰'.self::getCapitalNum($t- 1,true)):self::getCapitalNum(($leapMonth!=0&&$leapMonth+1<$t?($t-1):$t),true); //array_push($lunarArray,$year,$m,self::getCapitalNum($e,false));
} return array($year . '-' . $month . '-' . $e, $isLeap);
//array_push($lunarArray,self::getLunarYearName($year));//天干地支
//array_push($lunarArray,$t,$e);
//array_push($lunarArray,self::getYearZodiac($year));//12生肖
//array_push($lunarArray,$leapMonth);//闰几月
//return $lunarArray;
} /**
* 获取数字的阴历叫法
* @param num 数字
* @param isMonth 是否是月份的数字
*/
public static function getCapitalNum($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;
}
/**
*
* @param unknown $y
* @param unknown $m
* @param unknown $d
* @param unknown $time
*/
public static function getSolarAndLunarTime($y, $m, $d , $time){
$aTime = explode(':', $time);
$sSolar = $y . cfg::lang('year') . $m . cfg::lang('month') . $d . cfg::lang('day') . ' ' . $aTime[0] . cfg::lang('hour') . $aTime[1] . cfg::lang('minute'); $aLunarRes = calendarswach::convertSolarToLunar($y, $m, $d);
$lunarDate = $aLunarRes[0];//阴历日期
$isLeap = $aLunarRes[1];//是否闰月
$aLunar = explode('-', $lunarDate);
$blockNumber = cfg::lang('blockNumber');
$lunarY = $blockNumber[intval($aLunar[0]{0})] . $blockNumber[intval($aLunar[0]{1})] . $blockNumber[intval($aLunar[0]{2})] . $blockNumber[intval($aLunar[0]{3})];
$calendarLang = cfg::lang('calendar');
$lunarM = $calendarLang['month'][intval($aLunar[1])];
if ($isLeap) {
$lunarM = cfg::lang('leap') . $lunarM;
}
$lunarD = $calendarLang['date'][intval($aLunar[2])]; $aTime = explode(':', $time);
$tempHour = ($aTime[0] % 2) == 0 ? $aTime[0] + 2 : $aTime[0] + 3; //奇数+3 偶数 +2
$tempHour = $tempHour % 24;
$hourDiZhi = $tempHour / 2; //每两小时一个时辰
if ($hourDiZhi == 0) {
$hourDiZhi = 12;
}
$lang = cfg::lang('diZhi'); $lunarH = $lang[$hourDiZhi] . cfg::lang('lunarhour'); return array('solar' => $sSolar,
'lunar' => $lunarY . cfg::lang('year') . $lunarM . $lunarD . cfg::lang('day') . ' ' . $lunarH);
}
///新加的
/**
*
* @param unknown $sdate
* @param unknown $edate
*/
public static function getGapDays($sdate, $edate){
if($sdate > $edate){
return 0;
}
$aSdate = explode('-', $sdate);
$aEdate = explode('-', $edate);
$sYear = $aSdate[0];
$sMonth = (int)$aSdate[1];
$sDate = (int)$aSdate[2]; $eYear = $aEdate[0];
$eMonth = (int)$aEdate[1];
$eDate = (int)$aEdate[2]; $allDays = $yearDays = 0;
//同一年
if($sYear == $eYear){
if($sMonth == $eMonth){
//同一个月
return $eDate - $sDate;
}
//不同月
$isLeap = self::isLeapYear($sYear);
$loopMonth = $sMonth;
while ($loopMonth <= $eMonth){
if($loopMonth == $sMonth){
$monDays = self::getMonthDays($loopMonth, $isLeap);
$allDays += ($monDays - $sDate);//加上这个月剩余的天数
}elseif ($loopMonth == $eMonth){
$allDays += $eDate;//加上末月日期数
}else {
$monDays = self::getMonthDays($loopMonth, $isLeap);
$allDays += $monDays;//加上这个月的天数
}
$loopMonth++;
}
return $allDays;
}
//跨年
$aLeapAndGeneral = self::getLongYearsLeapAndGeneral($sYear, $eYear); $yearDays = $aLeapAndGeneral['leapYears'] * 366 + $aLeapAndGeneral['generalYears'] * 365;
//var_dump($aLeapAndGeneral,$yearDays, $sYear, $eYear, $allDays);
//计算首尾 $loopMonth = $sMonth;
$loopYear = $sYear;
$isLeap = self::isLeapYear($loopYear);
while (1){
if(($loopMonth == $sMonth) && ($loopYear == $sYear) ){
$monDays = self::getMonthDays($loopMonth, $isLeap);
$allDays += ($monDays - $sDate);//加上这个月剩余的天数
}elseif (($loopMonth == $eMonth) && ($loopYear == $eYear) ){
$allDays += $eDate;//加上末月日期数
break;
}else {
$monDays = self::getMonthDays($loopMonth, $isLeap);
$allDays += $monDays;//加上这个月的天数
}
$loopMonth++;
if($loopMonth == 13){
//转到尾年
$loopMonth = 1;//从1月份开始计算
$loopYear = $eYear;
$isLeap = self::isLeapYear($loopYear);
}
}
//var_dump($yearDays, $allDays);
$allDays += $yearDays; return $allDays;
} //计算差距2年(含2年)以上的闰年和平年年
//不含边界
public static function getLongYearsLeapAndGeneral($sYear, $eYear){
$sYear = (int)$sYear;
$eYear = (int)$eYear;
$gapYears = $eYear - $sYear;
if($gapYears < 2){
return array('leapYears' => 0, 'generalYears' => 0);
} $leapYears = $generalYears = 0;
$firstLeapYear = ++$sYear;
$endLeapYear = --$eYear; //5年以内
if($gapYears < 10){
while ($firstLeapYear <= $endLeapYear){
if(self::isLeapYear($firstLeapYear)){
$leapYears++;
}else {
$generalYears++;
}
$firstLeapYear++;
}
return array('leapYears' => $leapYears, 'generalYears' => $generalYears);
}
//超过5年
//首先找到开始年的下一个闰年
$sEgeneralYears = 0;
for ($i = 0; $i < 5; $i++){
if(self::isLeapYear($firstLeapYear)){
break;
}
$sEgeneralYears++;
$firstLeapYear++;
}
//找到最后一个闰年
for ($i = 0; $i < 5; $i++){
if(self::isLeapYear($endLeapYear)){
break;
}
$sEgeneralYears++;
$endLeapYear--;
}
//整百的1700 1800 1900 2100 不是瑞年
$noleap100th = self::get100th($firstLeapYear, $endLeapYear);
$modGapYears = $endLeapYear - $firstLeapYear;
$leapYears = ($modGapYears) / 4;
$generalYears = $leapYears * 3; $leapYears = $leapYears + 1 - $noleap100th;//加上边界 减去整100
$generalYears += $noleap100th;//加上整100平年
//加上收尾的平年
$generalYears += $sEgeneralYears;
return array('leapYears' => $leapYears, 'generalYears' => $generalYears);
}
//整百的1700 1800 1900 2100 不是瑞年
public static function get100th($sy, $ey){
$c = 0;
foreach (array(1700,1800,1900,2100) as $y){
if ($sy <= $y && $y<= $ey) {
$c++;
}
}
return $c;
}
//获取公历月份天数
public static function getMonthDays($month, $isLeap){
$month = (int)$month;
if ($month == 2) {
return $isLeap ? 29 : 28;
}
//1-12月分别为31天，29天，31天，30天，31天，30天，31天，31天，30天，31天，30天，31天
return in_array($month, array(1,3,5,7,8,10,12)) ? 31 : 30;
}
//获取年干支
public static function getYearGanZhi( $year){
$year = (int)$year;
//计算年柱时用的天干/地支排列
$aYearZhuTianGan = array(7,8,9,10,1,2,3,4,5,6);
$aYearZhuDizhi = array(9,10,11,12,1,2,3,4,5,6,7,8);
$yearTianGan = $aYearZhuTianGan[substr($year, -1)];
$yearDiZhi = $aYearZhuDizhi[$year % 12];
return array('yearTianGan' => $yearTianGan, 'yearDiZhi' => $yearDiZhi);
}
//获取某一年的所有月干支
/**
*
* @param unknown $year
* @param string $lunar true 阴历 false 阳历
*/
public static function getMonthsGanZhiByYear($year, $lunar = false){
$year = (int)$year; //立春在2月，先取二月的干支
$aYearZhuTianGan = array(7,8,9,10,1,2,3,4,5,6);
$yearTianGan = $aYearZhuTianGan[substr($year, -1)]; $aYearFirstMonthTiangan = array(
1 => 3,
2 => 5,
3 => 7,
4 => 9,
5 => 1,
6 => 3,
7 => 5,
8 => 7,
9 => 9,
10 => 1);
$monthTianGan = $aYearFirstMonthTiangan[$yearTianGan];
$monthDiZhi = 3;//自立春日起固定为寅（从立春当天到惊蛰前一天） $loopTianGan = $monthTianGan;
$loopDiZhi = $monthDiZhi; if ($lunar == true) {
$leapMonth = self::getLeapMonth($year);
$monthCount = $leapMonth > 0 ? 13 : 12;
$isLeapSta = 0;
for ($i = 1; $i<=$monthCount; $i++){
$month = $i;
$isleap = 0;
if($isLeapSta == 1){
$month = $i - 1;
$isleap = 1;
$isLeapSta = 2;
}elseif ($isLeapSta == 2){
//闰月后的月份
$month = $i - 1;
} $aData[] = array('month' => $month, 'isleap' => $isleap, 'tiangan' => $loopTianGan,'dizhi' => $loopDiZhi); //这里必须放后面
if(($leapMonth == $i) && ($isLeapSta == 0)){
$isLeapSta = 1;
}
$loopTianGan++;
$loopTianGan = $loopTianGan == 11 ? 1 : $loopTianGan; $loopDiZhi++;
$loopDiZhi = $loopDiZhi == 13 ? 1 : $loopDiZhi;
}
}else{
//1月的干支
$oneMonthTianGan = $monthTianGan - 1;
$oneMonthTianGan = $oneMonthTianGan == 0 ? 10 : $oneMonthTianGan;
$oneMonthDiZhi = 2; $aData = array();
$aData[] = array('month' => 1, 'tiangan' => $oneMonthTianGan, 'dizhi' => $oneMonthDiZhi);
$aData[] = array('month' => 2, 'tiangan' => $monthTianGan, 'dizhi' => $monthDiZhi); for ($i=3; $i<=12; $i++){
$loopTianGan++;
$loopTianGan = $loopTianGan == 11 ? 1 : $loopTianGan; $loopDiZhi++;
$loopDiZhi = $loopDiZhi == 13 ? 1 : $loopDiZhi;
$aData[] = array('month' => $i, 'tiangan' => $loopTianGan, 'dizhi' => $loopDiZhi);
}
}
return $aData;
}
/**
* 获取阳历某月的数据
* @param unknown $year
* @param unknown $month
*/
public static function getSolarMonthData($year, $month){
//1600-1-1日 星期六 辛酉日
//阳历月份天数
$days = self::getMonthDays($month, self::isLeapYear($year)); $startDate = '1600-01-01';//辛酉日
$startTianGan = 8;
$startDiZhi = 10;
$startW = 6;//星期六
$deffDays = calendarswach::getGapDays($startDate, "$year-$month-01") ; $aData = array();
for ($i = 1; $i<= $days; $i++){
$aLunarDate = self::convertSolarToLunar($year, $month, $i);
$aLunar = explode('-', $aLunarDate[0]);
$week = ($startW + $deffDays) % 7; $dayTianGan = ($startTianGan + $deffDays) % 10;
if ($dayTianGan == 0) {
$dayTianGan = 10;
} $dayDiZhi = ($startDiZhi + $deffDays) % 12;
if ($dayDiZhi == 0) {
$dayDiZhi = 12;
} $aTemp = array();
$aTemp['sd'] = $i;//阳历日期
$aTemp['ly'] = (int)$aLunar[0];//阴历年
$aTemp['lm'] = (int)$aLunar[1];//阴历月
$aTemp['ld'] = (int)$aLunar[2];//阴历日
$aTemp['leap'] = $aLunarDate[1] ? $aTemp['lm'] : 0;//闰几月
$aTemp['w'] = $week;//星期几
$aTemp['tg'] = $dayTianGan;//天干
$aTemp['dz'] = $dayDiZhi;//地支
$aData[] = $aTemp; $deffDays++;//间隔天数+1
}
return $aData;
}
/**
* 获取阴历某月的数据
* @param unknown $year
* @param unknown $month
*/
public static function getLunarMonthData($year, $month, $leapMonth){
$month = $leapMonth ? $month +1 : $month;
$sdate = self::convertLunarToSolar($year, $month, '1');
$aSolar = explode('-', $sdate);
$sy = (int)$aSolar[0];
$sm = (int)$aSolar[1];
$sd = (int)$aSolar[2]; $startDate = '1600-01-01';//辛酉日
$startTianGan = 8;
$startDiZhi = 10;
$startW = 6;//星期六
$deffDays = calendarswach::getGapDays($startDate, "$sy-$sm-$sd") ;//阳历相隔天数
//阴历大月30天
$monthDays = self::getLunarMonthDays($year, $month);
$aData = array();
for ($i=1; $i<=$monthDays; $i++){
$sdate = self::convertLunarToSolar($year, $month, $i);
$aSolar = explode('-', $sdate);
$week = ($startW + $deffDays) % 7; $dayTianGan = ($startTianGan + $deffDays) % 10;
if ($dayTianGan == 0) {
$dayTianGan = 10;
} $dayDiZhi = ($startDiZhi + $deffDays) % 12;
if ($dayDiZhi == 0) {
$dayDiZhi = 12;
} $aTemp = array();
$aTemp['ld'] = $i;//阴历日期
$aTemp['sy'] = (int)$aSolar[0];//阳历年
$aTemp['sm'] = (int)$aSolar[1];//阳历月
$aTemp['sd'] = (int)$aSolar[2];//阳历日
$aTemp['leap'] = $leapMonth;//闰几月
$aTemp['w'] = $week;//星期几
$aTemp['tg'] = $dayTianGan;//天干
$aTemp['dz'] = $dayDiZhi;//地支
$aData[] = $aTemp;
$deffDays++;//间隔天数+1
}
return $aData;
}
//获取日 时干支
public static function getDayHourGanZhis($dayTianGan){
$aDayFirstHourTiangan = array(
1 => 1,
2 => 3,
3 => 5,
4 => 7,
5 => 9,
6 => 1,
7 => 3,
8 => 5,
9 => 7,
10 => 9
);
$aData = array();
for ($hour=0;$hour<=23;$hour++){
$tmpDayTianGan = $dayTianGan;//日天干
$tempHour = ($hour % 2) == 0 ? $hour + 2 : $hour + 3; //奇数+3 偶数 +2
$tempHour = $tempHour % 24;
$hourDiZhi = $tempHour / 2; //每两小时一个时辰
if ($hourDiZhi == 0) {
$hourDiZhi = 12;
} if ($hour > 22) {////时间计算
$tmpDayTianGan = ($tmpDayTianGan + 1) % 10;
$tmpDayTianGan = ($tmpDayTianGan == 0 ) ? 10 : $tmpDayTianGan;
}
$dayFirstTianGan = $aDayFirstHourTiangan[$tmpDayTianGan];
$hourTianGan = ($dayFirstTianGan + ($hourDiZhi - 1)) % 10;
$hourTianGan = ($hourTianGan == 0 ) ? 10 : $hourTianGan;
$aTemp = array('h' => $hour, 'tg' => $hourTianGan, 'dz' => $hourDiZhi); $aData[] = $aTemp;
}
return $aData;
} } //$ba = gongliNongli::convertLunarToSolar(1924,1,1);
参考资料
[1]如何判断闰月
http://www.cnblogs.com/BpLoveGcy/archive/2010/03/29/1700085.html
[2]闰年知识科普
http://baike.baidu.com/subview/29649/7344239.htm