Lunar.php

<?php

/**
 * Class Lunar
 * 从 http://www.codefans.net/articles/1285.shtml 挖来的代码，挺好使的
 */
class Lunar
{
    var $MIN_YEAR = 1891;
    var $MAX_YEAR = 2100;
    var $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, 30, 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),
    );

    /**
     * 将阳历转换为阴历
     * @param year  公历-年
     * @param month 公历-月
     * @param date  公历-日
     */
    function convertSolarToLunar($year, $month, $date)
    {
        //debugger;
        $yearData = $this->lunarInfo[$year - $this->MIN_YEAR];
        if ($year == $this->MIN_YEAR && $month <= 2 && $date <= 9){
            return array(1891, '正月', '初一', '辛卯', 1, 1, '兔');
        }
        return $this->getLunarByBetween($year, $this->getDaysBetweenSolar($year, $month, $date, $yearData[1], $yearData[2]));
    }

    function convertSolarMonthToLunar($year, $month)
    {
        $yearData = $this->lunarInfo[$year - $this->MIN_YEAR];
        if ($year == $this->MIN_YEAR && $month <= 2 && $date <= 9){
            return array(1891, '正月', '初一', '辛卯', 1, 1, '兔');
        }
        $month_days_ary = array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
        $dd = $month_days_ary[$month];
        if ($this->isLeapYear($year) && $month == 2) $dd++;
        $lunar_ary = array();
        for ($i = 1; $i < $dd; $i++){
            $array = $this->getLunarByBetween($year, $this->getDaysBetweenSolar($year, $month, $i, $yearData[1], $yearData[2]));
            $array[] = $year . '-' . $month . '-' . $i;
            $lunar_ary[$i] = $array;
        }
        return $lunar_ary;
    }

    /**
     * 判断是否是闰年
     * @param year
     */
    function isLeapYear($year)
    {
        return (($year % 4 == 0 && $year % 100 != 0) || ($year % 400 == 0));
    }

    /**
     * 获取干支纪年
     * @param year
     */
    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
     */
    function getYearZodiac($year)
    {
        $zodiac = array('猴', '鸡', '狗', '猪', '鼠', '牛', '虎', '兔', '龙', '蛇', '马', '羊');
        return $zodiac[$year % 12];
    }

    /**
     * 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
     */
    function convertLunarToSolar($year, $month, $date)
    {
        $yearData = $this->lunarInfo[$year - $this->MIN_YEAR];
        $between = $this->getDaysBetweenLunar($year, $month, $date);
        $res = mktime(0, 0, 0, $yearData[1], $yearData[2], $year);
        $res = date('Y-m-d', $res + $between * 24 * 60 * 60);
        $day = explode('-', $res);
        $year = $day[0];
        $month = $day[1];
        $day = $day[2];
        return array($year, $month, $day);
    }

    /**
     * 获取阳历月份的天数
     * @param year  阳历-年
     * @param month 阳历-月
     */
    function getSolarMonthDays($year, $month)
    {
        $monthHash = array('1'  => 31,
                           '2'  => $this->isLeapYear($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
     */
    function getLunarMonthDays($year, $month)
    {
        $monthData = $this->getLunarMonths($year);
        return $monthData[$month - 1];
    }

    /**
     * 获取阴历每月的天数的数组
     * @param year
     */
    function getLunarMonths($year)
    {
        $yearData = $this->lunarInfo[$year - $this->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
     */
    function getLunarYearDays($year)
    {
        $yearData = $this->lunarInfo[$year - $this->MIN_YEAR];
        $monthArray = $this->getLunarYearMonths($year);
        $len = count($monthArray);
        return ($monthArray[$len - 1] == 0 ? $monthArray[$len - 2] : $monthArray[$len - 1]);
    }

    function getLunarYearMonths($year)
    {
        //debugger;
        $monthData = $this->getLunarMonths($year);
        $res = array();
        $temp = 0;
        $yearData = $this->lunarInfo[$year - $this->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
     */
    function getLeapMonth($year)
    {
        $yearData = $this->lunarInfo[$year - $this->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
     */
    function getDaysBetweenLunar($year, $month, $date)
    {
        $yearMonth = $this->getLunarMonths($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
     */
    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
     */
    function getLunarByBetween($year, $between)
    {
        //debugger;
        $lunarArray = array();
        $yearMonth = array();
        $t = 0;
        $e = 0;
        $leapMonth = 0;
        $m = '';
        if ($between == 0){
            array_push($lunarArray, $year, '正月', '初一');
            $t = 1;
            $e = 1;
        } else {
            $year = $between > 0 ? $year : ($year - 1);
            $yearMonth = $this->getLunarYearMonths($year);
            $leapMonth = $this->getLeapMonth($year);
            $between = $between > 0 ? $between : ($this->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;
                }
            }
            $m = ($leapMonth != 0 && $t == $leapMonth + 1) ? ('闰' . $this->getCapitalNum($t - 1, TRUE)) : $this->getCapitalNum(($leapMonth != 0 && $leapMonth + 1 < $t ? ($t - 1) : $t), TRUE);
            $my_year = $this->toYear($year);
            array_push($lunarArray, $my_year, $m, $this->getCapitalNum($e, FALSE));
        }
        array_push($lunarArray, $this->getLunarYearName($year));// 天干地支
        array_push($lunarArray, $t, $e);
        array_push($lunarArray, $this->getYearZodiac($year));// 12生肖
        array_push($lunarArray, $leapMonth);// 闰几月
        return $lunarArray;
    }

    //转换成中文年份
    function toYear($year)
    {
        $arr = array("零", "一", "二", "三", "四", "五", "六", "七", "八", "九");
        $year_arr = str_split($year);
        $str = $arr[$year_arr[0]] . $arr[$year_arr[1]] . $arr[$year_arr[2]] . $arr[$year_arr[3]];
        return $str;
    }

    /**
     * 获取数字的阴历叫法
     * @param num     数字
     * @param isMonth 是否是月份的数字
     */
    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;
    }
}