Solar calendar to lunar calendar function
1, Design idea:
#To calculate which day of the lunar calendar a given time is, we need to find a reference time, Then use this reference time to calculate future times. First, calculate the number of days difference between the current time and the reference time, then by finding the number of days in each year of the lunar calendar, calculate which day of the year the current time corresponds to, and finally calculate which date belongs to that month.
2, create a new Convert.class.php file;
Encapsulate the conversion function, the code is as follows:
<?php
header("Content-type:text/html;charset=utf-8");
class Convert{
private $animals=array("鼠","牛","虎","兔","龍","蛇","馬","羊","猴","雞","狗","豬");
private $curData=null;//當(dāng)前陽歷時間
private $ylYeal=0;
private $ylMonth=0;
private $yldate=0;
private $ylDays=0; //當(dāng)前日期是農(nóng)歷年的第多少天
private $leap=0;//代表潤哪一個月
private $leapDays=0;//代表閏月的天數(shù)
private $difmonth=0;//當(dāng)前時間距離參考時間相差多少月
private $difDay=0;//當(dāng)前時間距離參考時間相差多少天
private $tianGan=array("甲","乙","丙","丁","戊","己","庚","辛","壬","癸");
private $diZhi=array("子","丑","寅","卯","辰","巳","午","未","申","酉","戌","亥");
private $dataInfo=array(0x04bd8,0x04ae0,0x0a570,0x054d5,0x0d260,0x0d950,0x16554,0x056a0,0x09ad0,0x055d2,//1900-1909
0x04ae0,0x0a5b6,0x0a4d0,0x0d250,0x1d255,0x0b540,0x0d6a0,0x0ada2,0x095b0,0x14977,//1910-1919
0x04970,0x0a4b0,0x0b4b5,0x06a50,0x06d40,0x1ab54,0x02b60,0x09570,0x052f2,0x04970,//1920-1929
0x06566,0x0d4a0,0x0ea50,0x06e95,0x05ad0,0x02b60,0x186e3,0x092e0,0x1c8d7,0x0c950,//1930-1939
0x0d4a0,0x1d8a6,0x0b550,0x056a0,0x1a5b4,0x025d0,0x092d0,0x0d2b2,0x0a950,0x0b557,//1940-1949
0x06ca0,0x0b550,0x15355,0x04da0,0x0a5b0,0x14573,0x052b0,0x0a9a8,0x0e950,0x06aa0,//1950-1959
0x0aea6,0x0ab50,0x04b60,0x0aae4,0x0a570,0x05260,0x0f263,0x0d950,0x05b57,0x056a0,//1960-1969
0x096d0,0x04dd5,0x04ad0,0x0a4d0,0x0d4d4,0x0d250,0x0d558,0x0b540,0x0b6a0,0x195a6,//1970-1979
0x095b0,0x049b0,0x0a974,0x0a4b0,0x0b27a,0x06a50,0x06d40,0x0af46,0x0ab60,0x09570,//1980-1989
0x04af5,0x04970,0x064b0,0x074a3,0x0ea50,0x06b58,0x055c0,0x0ab60,0x096d5,0x092e0,//1990-1999
0x0c960,0x0d954,0x0d4a0,0x0da50,0x07552,0x056a0,0x0abb7,0x025d0,0x092d0,0x0cab5,//2000-2009
0x0a950,0x0b4a0,0x0baa4,0x0ad50,0x055d9,0x04ba0,0x0a5b0,0x15176,0x052b0,0x0a930,//2010-2019
0x07954,0x06aa0,0x0ad50,0x05b52,0x04b60,0x0a6e6,0x0a4e0,0x0d260,0x0ea65,0x0d530,//2020-2029
0x05aa0,0x076a3,0x096d0,0x04bd7,0x04ad0,0x0a4d0,0x1d0b6,0x0d250,0x0d520,0x0dd45,//2030-2039
0x0b5a0,0x056d0,0x055b2,0x049b0,0x0a577,0x0a4b0,0x0aa50,0x1b255,0x06d20,0x0ada0,//2040-2049
/**Add By JJonline@JJonline.Cn**/
0x14b63,0x09370,0x049f8,0x04970,0x064b0,0x168a6,0x0ea50, 0x06b20,0x1a6c4,0x0aae0,//2050-2059
0x0a2e0,0x0d2e3,0x0c960,0x0d557,0x0d4a0,0x0da50,0x05d55,0x056a0,0x0a6d0,0x055d4,//2060-2069
0x052d0,0x0a9b8,0x0a950,0x0b4a0,0x0b6a6,0x0ad50,0x055a0,0x0aba4,0x0a5b0,0x052b0,//2070-2079
0x0b273,0x06930,0x07337,0x06aa0,0x0ad50,0x14b55,0x04b60,0x0a570,0x054e4,0x0d160,//2080-2089
0x0e968,0x0d520,0x0daa0,0x16aa6,0x056d0,0x04ae0,0x0a9d4,0x0a2d0,0x0d150,0x0f252,//2090-2099
0x0d520);
public function __construct($curData=null){
if(!empty($curData)){
$this->curData=$curData;
}else{
$this->curData=date('Y-n-j');
}
$this->init();
}
public function init(){
$basedate='1900-2-1';//參照日期
$timezone='PRC';
$datetime= new DateTime($basedate, new DateTimeZone($timezone));
$curTime=new DateTime($this->curData, new DateTimeZone($timezone));
$offset = ($curTime->format('U') - $datetime->format('U'))/86400; //相差的天數(shù)
$offset=ceil($offset);
$this->difDay=$offset;
$offset+=1;//只能使用ceil，不能使用intval或者是floor,因為1900-1-31為正月初一，故需要加1
for($i=1900; $i<2050 && $offset>0; $i++){
$temp = $this->getYearDays($i); //計算i年有多少天
$offset -= $temp ;
$this->difmonth+=12;
//判斷該年否存在閏月
if($this->leapMonth($i)>0){
$this->difmonth+=1;
}
}
if($offset<0){
$offset += $temp;
$i--;
$this->difmonth-=12;
}
if($this->leapMonth($i)>0){
$this->difmonth-=1;
}
$this->ylDays=$offset;
//此時$offset代表是農(nóng)歷該年的第多少天
$this->ylYeal=$i;//農(nóng)歷哪一年
//計算月份，依次減去1~12月份的天數(shù)，直到offset小于下個月的天數(shù)
$curMonthDays=$this->monthDays($this->ylYeal,1);
//判斷是否該年是否存在閏月以及閏月的天數(shù)
$this->leap=$this->leapMonth($this->ylYeal);
if($this->leap !=0){
$this->leapDays=$this->leapDays($this->ylYeal);
}
for($i=1;$i<13 && $curMonthDays<$offset;$curMonthDays=$this->monthDays($this->ylYeal,++$i)){
if($this->leap == $i){ //閏月
if($offset>$this->leapDays){
--$i;
$offset-=$this->leapDays;
$this->difmonth+=1;
}else{
break;
}
}else{
$offset-=$curMonthDays;
$this->difmonth+=1;
}
}
$this->ylMonth=$i;
$this->yldate=$offset;
}
/**
*計算農(nóng)歷y年有多少天
**/
public function getYearDays($y){
$sum = 348;//12*29=348,不考慮小月的情況下
for($i=0x8000; $i>=0x10; $i>>=1){
$sum += ($this->dataInfo[$y-1900] & $i)? 1: 0;
}
return($sum+$this->leapDays($y));
}
/**
*獲取某一年閏月的天數(shù)
**/
public function leapDays($y){
if($this->leapMonth($y)){
return(($this->dataInfo[$y-1900] & 0x10000)? 30: 29);
} else {
return(0);
}
}
/**
*計算哪一月為閏月
*/
public function leapMonth($y){
return ($this->dataInfo[$y-1900] & 0xf);
}
/**
*計算農(nóng)歷y年m月有多少天
*/
public function monthDays($y,$m){
return (($this->dataInfo[$y-1900] & (0x10000>>$m))? 30: 29 );
}
public function getLyTime(){
$tmp=array('初','一','二','三','四','五','六','七','八','九','十','廿');
$dateStr='';
if($this->ylMonth>10){
$m2=intval($this->ylMonth -10); //十位
$dateStr='十'.$tmp[$m2].'月';
}elseif($this->ylMonth==1){
$dateStr='正月';
}else{
$dateStr=$tmp[$this->ylMonth].'月';
}
if($this->yldate <11){
$dateStr.='初'.$tmp[$this->yldate];
}else{
$m1=intval($this->yldate / 10);
if( $m1 !=3){
$dateStr.=($m1==1)?'十':'廿';
$m2=$this->yldate % 10;
if($m2==0){
$dateStr.='十';
}else{
$dateStr.=$tmp[$m2];
}
}else{
$dateStr.='三十';
}
}
return $dateStr;
}
/**
*獲取該年對于的天干地支年
**/
public function getYGanZhi(){
$gan=$this->tianGan[($this->ylYeal-4) % 10];
$zhi=$this->diZhi[($this->ylYeal-4) % 12];
return $gan.$zhi.'年';
}
/**
*獲取該年對于的天干地支月
**/
public function getMGanZhi(){
$gan=$this->tianGan[($this->difmonth+3) % 10];
$zhi=$this->diZhi[($this->difmonth+1) % 12];
return $gan.$zhi.'月';
}
/**
*獲取該年對于的天干地支日
**/
public function getDGanZhi(){
$gan=$this->tianGan[$this->difDay % 10];
$zhi=$this->diZhi[($this->difDay+4) % 12];
return $gan.$zhi.'日';
}
}
Modify calendar.php code:
Add new get request:
echo "< ;th onmouseOver='overTh(this)' onmouseOut='outTh(this)'><a href='?convert=$ymd'>{$d}</a></th>";
Call the encapsulation class:
<?php
$convert=isset($_GET["convert"])?$_GET["convert"]:date("Y-m-d");
if($convert!=''){
$c=new Convert($convert);
$time=$c->getLyTime();
// echo $convert.'對應(yīng)的農(nóng)歷時間：'.$time;
}
echo "<tr onmouseOver='overTr(this)'onmouseOut='outTr(this)'><td colspan='7' align='center'>";
echo "<div>$convert 對應(yīng)的農(nóng)歷時間：$time</div>";
The operation effect is as follows:
