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PHP实现公历与农历间的互转换方法介绍

发表于 分类于 9.8k 9 分钟

很多时候我们有公历和农历之间的互转需求，农历的计算是按照中国传统中总结出来的，与公历有一定的偏差，但很多时候也有必要用到农历，所以这里推出公历与农历的互转，希望帮助到你提升代码速度。

以下代码可以直接copy使用，细节地方根据php版本不同稍作调整即可。

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<?php

namespace app\help;

/*
 *
 * 农历、公历 互转类
 *
 * */

class Lunar
{
    private $_SMDay = array(1 => 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);//定义公历月分天数
    private $_LStart = 1950;//农历从1950年开始
    private $_LMDay = array(
        //差：该年的农历正月初一到该年公历1月1日的天数；1~12：农历月份天数；闰：如有闰月，记录该月平月天数
        //  差 1 2 3 4 5 6 7 8 9 10 11 12 闰
        array(47, 29, 30, 30, 29, 30, 30, 29, 29, 30, 29, 30, 29),
        array(36, 30, 29, 30, 30, 29, 30, 29, 30, 29, 30, 29, 30),
        array(6, 29, 30, 29, 30, 59, 29, 30, 30, 29, 30, 29, 30, 29),  //五月29 闰五月30
        array(44, 29, 30, 29, 29, 30, 30, 29, 30, 30, 29, 30, 29),
        array(33, 30, 29, 30, 29, 29, 30, 29, 30, 30, 29, 30, 30),
        array(23, 29, 30, 59, 29, 29, 30, 29, 30, 29, 30, 30, 30, 29),  //三月29 闰三月30
        array(42, 29, 30, 29, 30, 29, 29, 30, 29, 30, 29, 30, 30),
        array(30, 30, 29, 30, 29, 30, 29, 29, 59, 30, 29, 30, 29, 30),  //八月30 闰八月29
        array(48, 30, 30, 30, 29, 30, 29, 29, 30, 29, 30, 29, 30),
        array(38, 29, 30, 30, 29, 30, 29, 30, 29, 30, 29, 30, 29),
        array(27, 30, 29, 30, 29, 30, 59, 30, 29, 30, 29, 30, 29, 30),  //六月30 闰六月29
        array(45, 30, 29, 30, 29, 30, 29, 30, 30, 29, 30, 29, 30),
        array(35, 29, 30, 29, 29, 30, 29, 30, 30, 29, 30, 30, 29),
        array(24, 30, 29, 30, 58, 30, 29, 30, 29, 30, 30, 30, 29, 29),  //四月29 闰四月29
        array(43, 30, 29, 30, 29, 29, 30, 29, 30, 29, 30, 30, 30),
        array(32, 29, 30, 29, 30, 29, 29, 30, 29, 29, 30, 30, 29),
        array(20, 30, 30, 59, 30, 29, 29, 30, 29, 29, 30, 30, 29, 30),  //三月30 闰三月29
        array(39, 30, 30, 29, 30, 30, 29, 29, 30, 29, 30, 29, 30),
        array(29, 29, 30, 29, 30, 30, 29, 59, 30, 29, 30, 29, 30, 30),  //七月30 闰七月29
        array(47, 29, 30, 29, 30, 29, 30, 30, 29, 30, 29, 30, 29),
        array(36, 30, 29, 29, 30, 29, 30, 30, 29, 30, 30, 29, 30),
        array(26, 29, 30, 29, 29, 59, 30, 29, 30, 30, 30, 29, 30, 30),  //五月30 闰五月29
        array(45, 29, 30, 29, 29, 30, 29, 30, 29, 30, 30, 29, 30),
        array(33, 30, 29, 30, 29, 29, 30, 29, 29, 30, 30, 29, 30),
        array(22, 30, 30, 29, 59, 29, 30, 29, 29, 30, 30, 29, 30, 30),  //四月30 闰四月29
        array(41, 30, 30, 29, 30, 29, 29, 30, 29, 29, 30, 29, 30),
        array(30, 30, 30, 29, 30, 29, 30, 29, 59, 29, 30, 29, 30, 30),  //八月30 闰八月29
        array(48, 30, 29, 30, 30, 29, 30, 29, 30, 29, 30, 29, 29),
        array(37, 30, 29, 30, 30, 29, 30, 30, 29, 30, 29, 30, 29),
        array(27, 30, 29, 29, 30, 29, 60, 29, 30, 30, 29, 30, 29, 30),  //六月30 闰六月30
        array(46, 30, 29, 29, 30, 29, 30, 29, 30, 30, 29, 30, 30),
        array(35, 29, 30, 29, 29, 30, 29, 29, 30, 30, 29, 30, 30),
        array(24, 30, 29, 30, 58, 30, 29, 29, 30, 29, 30, 30, 30, 29),  //四月29 闰四月29
        array(43, 30, 29, 30, 29, 29, 30, 29, 29, 30, 29, 30, 30),
        array(32, 30, 29, 30, 30, 29, 29, 30, 29, 29, 59, 30, 30, 30),  //十月30 闰十月29
        array(50, 29, 30, 30, 29, 30, 29, 30, 29, 29, 30, 29, 30),
        array(39, 29, 30, 30, 29, 30, 30, 29, 30, 29, 30, 29, 29),
        array(28, 30, 29, 30, 29, 30, 59, 30, 30, 29, 30, 29, 29, 30),  //六月30 闰六月29
        array(47, 30, 29, 30, 29, 30, 29, 30, 30, 29, 30, 30, 29),
        array(36, 30, 29, 29, 30, 29, 30, 29, 30, 29, 30, 30, 30),
        array(26, 29, 30, 29, 29, 59, 29, 30, 29, 30, 30, 30, 30, 30),  //五月30 闰五月29
        array(45, 29, 30, 29, 29, 30, 29, 29, 30, 29, 30, 30, 30),
        array(34, 29, 30, 30, 29, 29, 30, 29, 29, 30, 29, 30, 30),
        array(22, 29, 30, 59, 30, 29, 30, 29, 29, 30, 29, 30, 29, 30),  //三月30 闰三月29
        array(40, 30, 30, 30, 29, 30, 29, 30, 29, 29, 30, 29, 30),
        array(30, 29, 30, 30, 29, 30, 29, 30, 59, 29, 30, 29, 30, 30),  //八月30 闰八月29
        array(49, 29, 30, 29, 30, 30, 29, 30, 29, 30, 30, 29, 29),
        array(37, 30, 29, 30, 29, 30, 29, 30, 30, 29, 30, 30, 29),
        array(27, 30, 29, 29, 30, 58, 30, 30, 29, 30, 30, 29, 30, 29),  //五月29 闰五月29
        array(46, 30, 29, 29, 30, 29, 29, 30, 29, 30, 30, 30, 29),
        array(35, 30, 30, 29, 29, 30, 29, 29, 30, 29, 30, 30, 29),
        array(23, 30, 30, 29, 59, 30, 29, 29, 30, 29, 30, 29, 30, 30),  //四月30 闰四月29
        array(42, 30, 30, 29, 30, 29, 30, 29, 29, 30, 29, 30, 29),
        array(31, 30, 30, 29, 30, 30, 29, 30, 29, 29, 30, 29, 30),
        array(21, 29, 59, 30, 30, 29, 30, 29, 30, 29, 30, 29, 30, 30),  //二月30 闰二月29
        array(39, 29, 30, 29, 30, 29, 30, 30, 29, 30, 29, 30, 29),
        array(28, 30, 29, 30, 29, 30, 29, 59, 30, 30, 29, 30, 30, 30),  //七月30 闰七月29
        array(48, 29, 29, 30, 29, 29, 30, 29, 30, 30, 30, 29, 30),
        array(37, 30, 29, 29, 30, 29, 29, 30, 29, 30, 30, 29, 30),
        array(25, 30, 30, 29, 29, 59, 29, 30, 29, 30, 29, 30, 30, 30),  //五月30 闰五月29
        array(44, 30, 29, 30, 29, 30, 29, 29, 30, 29, 30, 29, 30),
        array(33, 30, 29, 30, 30, 29, 30, 29, 29, 30, 29, 30, 29),
        array(22, 30, 29, 30, 59, 30, 29, 30, 29, 30, 29, 30, 29, 30),  //四月30 闰四月29
        array(40, 30, 29, 30, 29, 30, 30, 29, 30, 29, 30, 29, 30),
        array(30, 29, 30, 29, 30, 29, 30, 29, 30, 59, 30, 29, 30, 30),  //九月30 闰九月29
        array(49, 29, 30, 29, 29, 30, 29, 30, 30, 30, 29, 30, 29),
        array(38, 30, 29, 30, 29, 29, 30, 29, 30, 30, 29, 30, 30),
        array(27, 29, 30, 29, 30, 29, 59, 29, 30, 29, 30, 30, 30, 29),  //六月29 闰六月30
        array(46, 29, 30, 29, 30, 29, 29, 30, 29, 30, 29, 30, 30),
        array(35, 30, 29, 30, 29, 30, 29, 29, 30, 29, 29, 30, 30),
        array(24, 29, 30, 30, 59, 30, 29, 29, 30, 29, 30, 29, 30, 30),  //四月30 闰四月29
        array(42, 29, 30, 30, 29, 30, 29, 30, 29, 30, 29, 30, 29),
        array(31, 30, 29, 30, 29, 30, 30, 29, 30, 29, 30, 29, 30),
        array(21, 29, 59, 29, 30, 30, 29, 30, 30, 29, 30, 29, 30, 30),  //二月30 闰二月29
        array(40, 29, 30, 29, 29, 30, 29, 30, 30, 29, 30, 30, 29),
        array(28, 30, 29, 30, 29, 29, 59, 30, 29, 30, 30, 30, 29, 30),  //六月30 闰六月29
        array(47, 30, 29, 30, 29, 29, 30, 29, 29, 30, 30, 30, 29),
        array(36, 30, 30, 29, 30, 29, 29, 30, 29, 29, 30, 30, 29),
        array(25, 30, 30, 30, 29, 59, 29, 30, 29, 29, 30, 30, 29, 30),  //五月30 闰五月29
        array(43, 30, 30, 29, 30, 29, 30, 29, 30, 29, 29, 30, 30),
        array(33, 29, 30, 29, 30, 30, 29, 30, 29, 30, 29, 30, 29),
        array(22, 29, 30, 59, 30, 29, 30, 30, 29, 30, 29, 30, 29, 30),  //三月30 闰三月29
        array(41, 30, 29, 29, 30, 29, 30, 30, 29, 30, 30, 29, 30),
        array(30, 29, 30, 29, 29, 30, 29, 30, 29, 30, 30, 59, 30, 30),  //十一月30 闰十一月29
        array(49, 29, 30, 29, 29, 30, 29, 30, 29, 30, 30, 29, 30),
        array(38, 30, 29, 30, 29, 29, 30, 29, 29, 30, 30, 29, 30),
        array(27, 30, 30, 29, 30, 29, 59, 29, 29, 30, 29, 30, 30, 29),  //六月29 闰六月30
        array(45, 30, 30, 29, 30, 29, 29, 30, 29, 29, 30, 29, 30),
        array(34, 30, 30, 29, 30, 29, 30, 29, 30, 29, 29, 30, 29),
        array(23, 30, 30, 29, 30, 59, 30, 29, 30, 29, 30, 29, 29, 30),  //五月30 闰五月29
        array(42, 30, 29, 30, 30, 29, 30, 29, 30, 30, 29, 30, 29),
        array(31, 29, 30, 29, 30, 29, 30, 30, 29, 30, 30, 29, 30),
        array(21, 29, 59, 29, 30, 29, 30, 29, 30, 30, 29, 30, 30, 30),  //二月30 闰二月29
        array(40, 29, 30, 29, 29, 30, 29, 29, 30, 30, 29, 30, 30),
        array(29, 30, 29, 30, 29, 29, 30, 58, 30, 29, 30, 30, 30, 29),  //七月29 闰七月29
        array(47, 30, 29, 30, 29, 29, 30, 29, 29, 30, 29, 30, 30),
        array(36, 30, 29, 30, 29, 30, 29, 30, 29, 29, 30, 29, 30),
        array(25, 30, 29, 30, 30, 59, 29, 30, 29, 29, 30, 29, 30, 29),  //五月29 闰五月30
        array(44, 29, 30, 30, 29, 30, 30, 29, 30, 29, 29, 30, 29),
        array(32, 30, 29, 30, 29, 30, 30, 29, 30, 30, 29, 30, 29),
        array(22, 29, 30, 59, 29, 30, 29, 30, 30, 29, 30, 30, 29, 29),  //三月29 闰三月30
    );

    //是否闰年
    private function IsLeapYear($AYear)
    {
        return ($AYear % 4 == 0) && (($AYear % 100 != 0) || ($AYear % 400 == 0));
    }

    //公历该月的天数(year：年份； month：月份)
    private function GetSMon($year, $month)
    {
        if ($this->IsLeapYear($year) && $month == 2)
            return 29;
        else
            return $this->_SMDay[$month];
    }

    //农历名称转换
    private function LYearName($year)
    {
        $Name = array("零", "一", "二", "三", "四", "五", "六", "七", "八", "九");
        for ($i = 0; $i < 4; $i++)
            for ($k = 0; $k < 10; $k++)
                if ($year[$i] == $k)
                    $tmp .= $Name[$k];
        return $tmp;
    }

    private function LMonName($month)
    {
        if ($month >= 1 && $month <= 12) {
            $Name = array(1 => "正", "二", "三", "四", "五", "六", "七", "八", "九", "十", "十一", "十二");
            return $Name[$month];
        }
        return $month;
    }

    private function LDayName($day)
    {
        if ($day >= 1 && $day <= 30) {
            $Name = array(1 =>
                              "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"
            );
            return $Name[$day];
        }
        return $day;
    }

    //公历转农历(Sdate：公历日期)
    public function S2L($date)
    {
        list($year, $month, $day) = explode("-", $date);
        if ($year <= 1951 || $month <= 0 || $day <= 0 || $year >= 2051) return false;
        //获取查询日期到当年1月1日的天数
        $date1 = strtotime($year . "-01-01");//当年1月1日
        $date2 = strtotime($year . "-" . $month . "-" . $day);
        $days  = round(($date2 - $date1) / 3600 / 24);
        $days  += 1;
        //获取相应年度农历数据，化成数组Larray
        $Larray = $this->_LMDay[$year - $this->_LStart];
        if ($days <= $Larray[0]) {
            $Lyear  = $year - 1;
            $days   = $Larray[0] - $days;
            $Larray = $this->_LMDay[$Lyear - $this->_LStart];
            if ($days < $Larray[12]) {
                $Lmonth = 12;
                $Lday   = $Larray[12] - $days;
            } else {
                $Lmonth = 11;
                $days   = $days - $Larray[12];
                $Lday   = $Larray[11] - $days;
            }
        } else {
            $Lyear = $year;
            $days  = $days - $Larray[0];
            for ($i = 1; $i <= 12; $i++) {
                if ($days > $Larray[$i]) $days = $days - $Larray[$i];
                else {
                    if ($days > 30) {
                        $days  = $days - $Larray[13];
                        $Ltype = 1;
                    }
                    $Lmonth = $i;
                    $Lday   = $days;
                    break;
                }
            }
        }
        return mktime(0, 0, 0, $Lmonth, $Lday, $Lyear);
    }

    //农历转公历(date：农历日期； type：是否闰月)
    public function L2S($date, $type = 0)
    {
        list($year, $month, $day) = explode("-", $date);
        $month = intval($month);
        if ($year <= 1951 || $month <= 0 || $day <= 0 || $year >= 2051) return false;
        $Larray = $this->_LMDay[$year - $this->_LStart];
        if ($type == 1 && count($Larray) <= 12) return false;//要求查询闰，但查无闰月
        //如果查询的农历是闰月并该年度农历数组存在闰月数据就获取
        if ($Larray[$month] > 30 && $type == 1 && count($Larray) >= 13) $day = $Larray[13] + $day;
        //获取该年农历日期到公历1月1日的天数
        $days = $day;
        for ($i = 0; $i <= $month - 1; $i++)
            $days += $Larray[$i];
        //当查询农历日期距离公历1月1日超过一年时
        if ($days > 366 || ($this->GetSMon($month, 2) != 29 && $days > 365)) {
            $Syear = $year + 1;
            if ($this->GetSMon($month, 2) != 29)
                $days -= 366;
            else
                $days -= 365;
            if ($days > $this->_SMDay[1]) {
                $Smonth = 2;
                $Sday   = $days - $this->_SMDay[1];
            } else {
                $Smonth = 1;
                $Sday   = $days;
            }
        } else {
            $Syear = $year;
            for ($i = 1; $i <= 12; $i++) {
                if ($days > $this->GetSMon($Syear, $i))
                    $days -= $this->GetSMon($Syear, $i);
                else {
                    $Smonth = $i;
                    $Sday   = $days;
                    break;
                }
            }
        }
        return mktime(0, 0, 0, $Smonth, $Sday, $Syear);
    }
}