php阳历转农历，2016优化版

php阳历转农历，2016优化版
在网上一个原有的源码基础上小小的改动了下，包成函数，便于灵活转换。

<?php
 
function nongli($riqi)
{
//优化修改 20160807 FXL
$nian=date(&#39;Y&#39;,strtotime($riqi));
$yue=date(&#39;m&#39;,strtotime($riqi));
$ri=date(&#39;d&#39;,strtotime($riqi));
 
  
  #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),
                    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),
                    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),
                    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),
                    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),
                    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),
                    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");
  #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();  //获取今天的日期
  if($nian<1901 || $nian>2020) die("年份出错！");
  //$cur_wday=$today["wday"]; //星期中第几天的数字表示
  for($y=1901;$y<$nian;$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) $total++;
  }
  switch($yue) { //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:
              $total+=31;
  }
  if($nian%4 == 0 && $yue>2) $total++; //如果当年是闰年还要加一天
  $total=$total+$ri-1; //加当月的天数
  $flag1=0;  //判断跳出循环的条件
  $j=0;
  while ($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];
   
  //$nowday=date("Y年n月j日 ")."w".$weekday[$cur_wday]." ".$mten[$everymonth[$j][14]].$mtwelve[$everymonth[$j][15]]."年".$nlmon.$nlday;
  $nowday=$mten[$everymonth[$j][14]].$mtwelve[$everymonth[$j][15]]."年 ".$nlmon.$nlday;
  return $nowday;
}
echo nongli(&#39;20160807&#39;); //标准8位