php实现农历日历的代码

 ###########################################
 #作者: 沈潋(S&S Lab) #
 #E-mail:[e-mail] #
 #web: http://www.focus-2000.com #
 # #
 #版权声明: #
 #作者开放版权 #
 #允许无条件地使用本文件的全部或部分 #
 #可作任何修改或增补 #
 #如果您使用了本文件，请给作者写一封E-mail #
 #如有问题欢迎同作者联系 #
 #谢谢您的关注! #
 ###########################################
 /*
 *修改：小许
 *mail: [e-mail]
 *web : http://www.xfocus.org
 *
 *说实在的，我对古历可以说一窍不通，下面这个数组还是不理解 可是作者的信箱好像不通
 *基本上是依样画葫芦，所以出现错误，见笑见笑，呵呵
 */
 #农历每月的天数
 $everymonth=array(
 0=>array(8,0,0,0,0,0,0,0,0,0,0,0,29,30,7,1),
 1=>array(0,29,30,29,29,30,29,30,29,30,30,30,29,0,8,2),
 2=>array(0,30,29,30,29,29,30,29,30,29,30,30,30,0,9,3),
 3=>array(5,29,30,29,30,29,29,30,29,29,30,30,29,30,10,4),
 4=>array(0,30,30,29,30,29,29,30,29,29,30,30,29,0,1,5),
 5=>array(0,30,30,29,30,30,29,29,30,29,30,29,30,0,2,6),
 6=>array(4,29,30,30,29,30,29,30,29,30,29,30,29,30,3,7),
 7=>array(0,29,30,29,30,29,30,30,29,30,29,30,29,0,4,8),
 8=>array(0,30,29,29,30,30,29,30,29,30,30,29,30,0,5,9),
 9=>array(2,29,30,29,29,30,29,30,29,30,30,30,29,30,6,10),
 10=>array(0,29,30,29,29,30,29,30,29,30,30,30,29,0,7,11),
 11=>array(6,30,29,30,29,29,30,29,29,30,30,29,30,30,8,12),
 12=>array(0,30,29,30,29,29,30,29,29,30,30,29,30,0,9,1),

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 13=>array(0,30,30,29,30,29,29,30,29,29,30,29,30,0,10,2),
 14=>array(5,30,30,29,30,29,30,29,30,29,30,29,29,30,1,3),
 15=>array(0,30,29,30,30,29,30,29,30,29,30,29,30,0,2,4),
 16=>array(0,29,30,29,30,29,30,30,29,30,29,30,29,0,3,5),
 17=>array(2,30,29,29,30,29,30,30,29,30,30,29,30,29,4,6),
 18=>array(0,30,29,29,30,29,30,29,30,30,29,30,30,0,5,7),
 19=>array(7,29,30,29,29,30,29,29,30,30,29,30,30,30,6,8),
 20=>array(0,29,30,29,29,30,29,29,30,30,29,30,30,0,7,9),
 21=>array(0,30,29,30,29,29,30,29,29,30,29,30,30,0,8,10),
 22=>array(5,30,29,30,30,29,29,30,29,29,30,29,30,30,9,11),
 23=>array(0,29,30,30,29,30,29,30,29,29,30,29,30,0,10,12),
 24=>array(0,29,30,30,29,30,30,29,30,29,30,29,29,0,1,1),
 25=>array(4,30,29,30,29,30,30,29,30,30,29,30,29,30,2,2),
 26=>array(0,29,29,30,29,30,29,30,30,29,30,30,29,0,3,3),
 27=>array(0,30,29,29,30,29,30,29,30,29,30,30,30,0,4,4),

 28=>array(2,29,30,29,29,30,29,29,30,29,30,30,30,30,5,5),
 29=>array(0,29,30,29,29,30,29,29,30,29,30,30,30,0,6,6),
 30=>array(6,29,30,30,29,29,30,29,29,30,29,30,30,29,7,7),
 31=>array(0,30,30,29,30,29,30,29,29,30,29,30,29,0,8,8),
 32=>array(0,30,30,30,29,30,29,30,29,29,30,29,30,0,9,9),
 33=>array(5,29,30,30,29,30,30,29,30,29,30,29,29,30,10,10),
 34=>array(0,29,30,29,30,30,29,30,29,30,30,29,30,0,1,11),
 35=>array(0,29,29,30,29,30,29,30,30,29,30,30,29,0,2,12),
 36=>array(3,30,29,29,30,29,29,30,30,29,30,30,30,29,3,1),
 37=>array(0,30,29,29,30,29,29,30,29,30,30,30,29,0,4,2),
 38=>array(7,30,30,29,29,30,29,29,30,29,30,30,29,30,5,3),
 39=>array(0,30,30,29,29,30,29,29,30,29,30,29,30,0,6,4),
 40=>array(0,30,30,29,30,29,30,29,29,30,29,30,29,0,7,5),
 41=>array(6,30,30,29,30,30,29,30,29,29,30,29,30,29,8,6),
 42=>array(0,30,29,30,30,29,30,29,30,29,30,29,30,0,9,7),
 43=>array(0,29,30,29,30,29,30,30,29,30,29,30,29,0,10,8),
 44=>array(4,30,29,30,29,30,29,30,29,30,30,29,30,30,1,9),
 45=>array(0,29,29,30,29,29,30,29,30,30,30,29,30,0,2,10),
 46=>array(0,30,29,29,30,29,29,30,29,30,30,29,30,0,3,11),
 47=>array(2,30,30,29,29,30,29,29,30,29,30,29,30,30,4,12),
 48=>array(0,30,29,30,29,30,29,29,30,29,30,29,30,0,5,1),
 49=>array(7,30,29,30,30,29,30,29,29,30,29,30,29,30,6,2),
 50=>array(0,29,30,30,29,30,30,29,29,30,29,30,29,0,7,3),
 51=>array(0,30,29,30,30,29,30,29,30,29,30,29,30,0,8,4),
 52=>array(5,29,30,29,30,29,30,29,30,30,29,30,29,30,9,5),
 53=>array(0,29,30,29,29,30,30,29,30,30,29,30,29,0,10,6),
 54=>array(0,30,29,30,29,29,30,29,30,30,29,30,30,0,1,7),
 55=>array(3,29,30,29,30,29,29,30,29,30,29,30,30,30,2,8),
 56=>array(0,29,30,29,30,29,29,30,29,30,29,30,30,0,3,9),
 57=>array(8,30,29,30,29,30,29,29,30,29,30,29,30,29,4,10),

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 58=>array(0,30,30,30,29,30,29,29,30,29,30,29,30,0,5,11),
 59=>array(0,29,30,30,29,30,29,30,29,30,29,30,29,0,6,12),
 60=>array(6,30,29,30,29,30,30,29,30,29,30,29,30,29,7,1),
 61=>array(0,30,29,30,29,30,29,30,30,29,30,29,30,0,8,2),
 62=>array(0,29,30,29,29,30,29,30,30,29,30,30,29,0,9,3),
 63=>array(4,30,29,30,29,29,30,29,30,29,30,30,30,29,10,4),
 64=>array(0,30,29,30,29,29,30,29,30,29,30,30,30,0,1,5),
 65=>array(0,29,30,29,30,29,29,30,29,29,30,30,29,0,2,6),
 66=>array(3,30,30,30,29,30,29,29,30,29,29,30,30,29,3,7),
 67=>array(0,30,30,29,30,30,29,29,30,29,30,29,30,0,4,8),
 68=>array(7,29,30,29,30,30,29,30,29,30,29,30,29,30,5,9),
 69=>array(0,29,30,29,30,29,30,30,29,30,29,30,29,0,6,10),
 70=>array(0,30,29,29,30,29,30,30,29,30,30,29,30,0,7,11),
 71=>array(5,29,30,29,29,30,29,30,29,30,30,30,29,30,8,12),
 72=>array(0,29,30,29,29,30,29,30,29,30,30,29,30,0,9,1), php程序员站
 73=>array(0,30,29,30,29,29,30,29,29,30,30,29,30,0,10,2),
 74=>array(4,30,30,29,30,29,29,30,29,29,30,30,29,30,1,3),
 75=>array(0,30,30,29,30,29,29,30,29,29,30,29,30,0,2,4),
 76=>array(8,30,30,29,30,29,30,29,30,29,29,30,29,30,3,5),
 77=>array(0,30,29,30,30,29,30,29,30,29,30,29,29,0,4,6),
 78=>array(0,30,29,30,30,29,30,30,29,30,29,30,29,0,5,7),
 79=>array(6,30,29,29,30,29,30,30,29,30,30,29,30,29,6,8),
 80=>array(0,30,29,29,30,29,30,29,30,30,29,30,30,0,7,9),
 81=>array(0,29,30,29,29,30,29,29,30,30,29,30,30,0,8,10),
 82=>array(4,30,29,30,29,29,30,29,29,30,29,30,30,30,9,11),
 83=>array(0,30,29,30,29,29,30,29,29,30,29,30,30,0,10,12),
 84=>array(10,30,29,30,30,29,29,30,29,29,30,29,30,30,1,1),
 85=>array(0,29,30,30,29,30,29,30,29,29,30,29,30,0,2,2),
 86=>array(0,29,30,30,29,30,30,29,30,29,30,29,29,0,3,3),
 87=>array(6,30,29,30,29,30,30,29,30,30,29,30,29,29,4,4),

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 88=>array(0,30,29,30,29,30,29,30,30,29,30,30,29,0,5,5),
 89=>array(0,30,29,29,30,29,29,30,30,29,30,30,30,0,6,6),
 90=>array(5,29,30,29,29,30,29,29,30,29,30,30,30,30,7,7),
 91=>array(0,29,30,29,29,30,29,29,30,29,30,30,30,0,8,8),
 92=>array(0,29,30,30,29,29,30,29,29,30,29,30,30,0,9,9),
 93=>array(3,29,30,30,29,30,29,30,29,29,30,29,30,29,10,10),
 94=>array(0,30,30,30,29,30,29,30,29,29,30,29,30,0,1,11),
 95=>array(8,29,30,30,29,30,29,30,30,29,29,30,29,30,2,12),
 96=>array(0,29,30,29,30,30,29,30,29,30,30,29,29,0,3,1),
 97=>array(0,30,29,30,29,30,29,30,30,29,30,30,29,0,4,2),
 98=>array(5,30,29,29,30,29,29,30,30,29,30,30,29,30,5,3),
 99=>array(0,30,29,29,30,29,29,30,29,30,30,30,29,0,6,4),
 100=>array(0,30,30,29,29,30,29,29,30,29,30,30,29,0,7,5),
 101=>array(4,30,30,29,30,29,30,29,29,30,29,30,29,30,8,6),
 102=>array(0,30,30,29,30,29,30,29,29,30,29,30,29,0,9,7),

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 103=>array(0,30,30,29,30,30,29,30,29,29,30,29,30,0,10,8),
 104=>array(2,29,30,29,30,30,29,30,29,30,29,30,29,30,1,9),
 105=>array(0,29,30,29,30,29,30,30,29,30,29,30,29,0,2,10),
 106=>array(7,30,29,30,29,30,29,30,29,30,30,29,30,30,3,11),
 107=>array(0,29,29,30,29,29,30,29,30,30,30,29,30,0,4,12),
 108=>array(0,30,29,29,30,29,29,30,29,30,30,29,30,0,5,1),
 109=>array(5,30,30,29,29,30,29,29,30,29,30,29,30,30,6,2),
 110=>array(0,30,29,30,29,30,29,29,30,29,30,29,30,0,7,3),
 111=>array(0,30,29,30,30,29,30,29,29,30,29,30,29,0,8,4),
 112=>array(4,30,29,30,30,29,30,29,30,29,30,29,30,29,9,5),
 113=>array(0,30,29,30,29,30,30,29,30,29,30,29,30,0,10,6),
 114=>array(9,29,30,29,30,29,30,29,30,30,29,30,29,30,1,7),
 115=>array(0,29,30,29,29,30,29,30,30,30,29,30,29,0,2,8),
 116=>array(0,30,29,30,29,29,30,29,30,30,29,30,30,0,3,9),
 117=>array(6,29,30,29,30,29,29,30,29,30,29,30,30,30,4,10),

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 118=>array(0,29,30,29,30,29,29,30,29,30,29,30,30,0,5,11),
 119=>array(0,30,29,30,29,30,29,29,30,29,29,30,30,0,6,12),
 120=>array(4,29,30,30,30,29,30,29,29,30,29,30,29,30,7,1)
 );
##############################
 #农历天干
 $mten=array("null","甲","乙","丙","丁","戊","己","庚","辛","壬","癸");
 #农历地支
 $mtwelve=array("null","子(鼠)","丑(牛)","寅(虎)","卯(兔)","辰(龙)",
 "巳(蛇)","午(马)","未(羊)","申(猴)","酉(鸡)","戌(狗)","亥(猪)");
 #农历月份
 $mmonth=array("闰","正","二","三","四","五","六",
 "七","八","九","十","十一","十二","月");

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 #农历日
 $mday=array("null","初一","初二","初三","初四","初五","初六","初七","初八","初九","初十",
 "十一","十二","十三","十四","十五","十六","十七","十八","十九","二十",
 "廿一","廿二","廿三","廿四","廿五","廿六","廿七","廿八","廿九","三十");
##############################
 #星期
 $weekday = array("星期日","星期一","星期二","星期三","星期四","星期五","星期六");
 #阳历总天数 至1900年12月21日
 $total=11;
 #阴历总天数
 $mtotal=0;
##############################
 #获得当日日期
 $today=getdate();
 if($today["year"]<1901 || $today["year"]>2020) die("年份出错！");

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 $cur_wday=$today["wday"];
 for($y=1901;$y<$today["year"];$y++) { //计算到所求日期阳历的总天数-自1900年12月21日始,先算年的和
 $total+=365;
 if ($y%4==0) $total++;
 }
 switch($today["mon"]) { //再加当年的几个月
 case 12:
 $total+=30;
 case 11:
 $total+=31;
 case 10:
 $total+=30;
 case 9:
 $total+=31;
 case 8:
 $total+=31;
 case 7:
 $total+=30;
 case 6:
 $total+=31;
 case 5:
 $total+=30;
 case 4:
 $total+=31;
 case 3:
 $total+=28;
 case 2:
 $total+=31;
 }
 if($today["year"]%4 == 0 && $today["mon"]>2) $total++; //如果当年是闰年还要加一天
 $total=$total+$today["mday"]-1; //加当月的天数
 $flag1=0; //判断跳出循环的条件

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 $j=0;
 while ($j<=120){ //用农历的天数累加来判断是否超过阳历的天数
 $i=1;
 while ($i<=13){
 $mtotal+=$everymonth[$j][$i];
 if ($mtotal>=$total){
 $flag1=1;
 break;
 }
 $i++;
 }
 if ($flag1==1) break;
 $j++;
 }
 if($everymonth[$j][0]<>0 and $everymonth[$j][0]<$i){ //原来错在这里，对闰月没有修补
 $mm=$i-1;
 }
 else{
 $mm=$i;
 }
 if($i==$everymonth[$j][0]+1 and $everymonth[$j][0]<>0) {
 $nlmon=$mmonth[0].$mmonth[$mm];#闰月
 }
 else {
 $nlmon=$mmonth[$mm].$mmonth[13];
 }
 #计算所求月份1号的农历日期
 $md=$everymonth[$j][$i]-($mtotal-$total);
 if($md > $everymonth[$j][$i])
 $md-=$everymonth[$j][$i];
 $nlday=$mday[$md];
 $nowday=date("Y年n月j日 ").$weekday[$cur_wday]."
".$mten[$everymonth[$j][14]].$mtwelve[$everymonth[$j][15]]."年".$nlmon.$nlday;

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 echo "$nowday";
?>