在laravel中计算两个日期之间的天数的正确方法是什么

【问题标题】：What is the correct way to calculate no of days between two dates in laravel在laravel中计算两个日期之间的天数的正确方法是什么
【发布时间】：2020-03-21 10:50:18
【问题描述】：

我目前正在处理尼泊尔日期。由于月末没有简单的逻辑，它可以是 29、30、31 和 32。在特定逻辑中，我不需要两个日期之间的天数。

我尝试了以下代码：

    $from = '2076-07-15';
    $to = '2076-07-30';

    $from_array = explode('-', $from);
    $to_array = explode('-', $to);

    $days = $to_array[2] - $from_array[2];

这给出的天数为 15，但在以下情况下是正确的，

$from  = '2076-07-01';
$to = '2076-07-15';

输出将是 14，但我想要的输出是 15，因为从 1 到 15 有 15 天。

我想要的示例输出是：

From       To            Required  Current

2076-07-01 2076-07-15 => 15 days   14 days -----> Incorrect
2076-07-15 2076-07-30 => 15 days   15 days ------> Correct
2076-07-01 2076-07-30 => 30 days   29 days ------> Incorrect

有什么办法可以做到吗？

注意：from和to变量的年月值相同，只有day字段不同

【问题讨论】：

  • laravel？只使用Carbon，或者只使用DateTime 类，不要使用诸如explode 之类的字符串操作
  • @Kevin 我不能使用 Carbon，因为我在尼泊尔使用当地日期，这不是英文日期，有些月份可能有 32 天
  • 那你需要把它转换成英文日期并使用碳没有其他办法兄弟。我也是尼泊尔人。
  • 这个呢？ stackoverflow.com/a/21552708/3859027 这使用尼泊尔语格式与Carbon/DateTime
  • 抱歉，“输出将是 14，但我想要的输出是 15，因为从 1 到 15 有 15 天。”但是根据您的输出： 2076-07-15 2076-07-30 => 15 days 15 days ------> 正确 应该也是错的，因为从 15 到 30 有 16 天

标签： php laravel date


【解决方案1】：

最简单的方法是使用nesbot/carbon 包https://carbon.nesbot.com/#gettingstarted。 

use Carbon\Carbon;

$from = Carbon::parse('2076-07-15');
$to = Carbon::parse('2076-07-30');
$days = $from->diffInDays($to);

【讨论】：

    【解决方案2】：

    试试

     $datetime1 = new DateTime("05-07-2019");
 $datetime2 = new DateTime("10-08-2021");
 $difference = $datetime1->diff($datetime2);
 echo 'Difference: '.$difference->y.' years, ' 
           .$difference->m.' months, ' 
           .$difference->d.' days';

    它会给出一个输出

    Difference: 2 years, 1 months, 5 days

    如果你只想要天的差异。使用

    echo 'Difference: '.$difference->format('%a').' Days';

    输出将是

    Difference: 767 Days

    【讨论】：

      【解决方案3】：

      将此代码复制并粘贴到您可以访问的某个位置，然后使用提供的最后一个示例方法。这会将尼泊尔语转换成英语，反之亦然。然后用 Carbon 减去日期。

      Nepali into english and vice versa converter

      <?php
namespace App\Helper;

class Nepali_Calendar
{
    // Data for nepali date
    private $_bs = array(
        0 => array(2000,30,32,31,32,31,30,30,30,29,30,29,31),
        1 => array(2001,31,31,32,31,31,31,30,29,30,29,30,30),
        2 => array(2002,31,31,32,32,31,30,30,29,30,29,30,30),
        3 => array(2003,31,32,31,32,31,30,30,30,29,29,30,31),
        4 => array(2004,30,32,31,32,31,30,30,30,29,30,29,31),
        5 => array(2005,31,31,32,31,31,31,30,29,30,29,30,30),
        6 => array(2006,31,31,32,32,31,30,30,29,30,29,30,30),
        7 => array(2007,31,32,31,32,31,30,30,30,29,29,30,31),
        8 => array(2008,31,31,31,32,31,31,29,30,30,29,29,31),
        9 => array(2009,31,31,32,31,31,31,30,29,30,29,30,30),
        10 => array(2010,31,31,32,32,31,30,30,29,30,29,30,30),
        11 => array(2011,31,32,31,32,31,30,30,30,29,29,30,31),
        12 => array(2012,31,31,31,32,31,31,29,30,30,29,30,30),
        13 => array(2013,31,31,32,31,31,31,30,29,30,29,30,30),
        14 => array(2014,31,31,32,32,31,30,30,29,30,29,30,30),
        15 => array(2015,31,32,31,32,31,30,30,30,29,29,30,31),
        16 => array(2016,31,31,31,32,31,31,29,30,30,29,30,30),
        17 => array(2017,31,31,32,31,31,31,30,29,30,29,30,30),
        18 => array(2018,31,32,31,32,31,30,30,29,30,29,30,30),
        19 => array(2019,31,32,31,32,31,30,30,30,29,30,29,31),
        20 => array(2020,31,31,31,32,31,31,30,29,30,29,30,30),
        21 => array(2021,31,31,32,31,31,31,30,29,30,29,30,30),
        22 => array(2022,31,32,31,32,31,30,30,30,29,29,30,30),
        23 => array(2023,31,32,31,32,31,30,30,30,29,30,29,31),
        24 => array(2024,31,31,31,32,31,31,30,29,30,29,30,30),
        25 => array(2025,31,31,32,31,31,31,30,29,30,29,30,30),
        26 => array(2026,31,32,31,32,31,30,30,30,29,29,30,31),
        27 => array(2027,30,32,31,32,31,30,30,30,29,30,29,31),
        28 => array(2028,31,31,32,31,31,31,30,29,30,29,30,30),
        29 => array(2029,31,31,32,31,32,30,30,29,30,29,30,30),
        30 => array(2030,31,32,31,32,31,30,30,30,29,29,30,31),
        31 => array(2031,30,32,31,32,31,30,30,30,29,30,29,31),
        32 => array(2032,31,31,32,31,31,31,30,29,30,29,30,30),
        33 => array(2033,31,31,32,32,31,30,30,29,30,29,30,30),
        34 => array(2034,31,32,31,32,31,30,30,30,29,29,30,31),
        35 => array(2035,30,32,31,32,31,31,29,30,30,29,29,31),
        36 => array(2036,31,31,32,31,31,31,30,29,30,29,30,30),
        37 => array(2037,31,31,32,32,31,30,30,29,30,29,30,30),
        38 => array(2038,31,32,31,32,31,30,30,30,29,29,30,31),
        39 => array(2039,31,31,31,32,31,31,29,30,30,29,30,30),
        40 => array(2040,31,31,32,31,31,31,30,29,30,29,30,30),
        41 => array(2041,31,31,32,32,31,30,30,29,30,29,30,30),
        42 => array(2042,31,32,31,32,31,30,30,30,29,29,30,31),
        43 => array(2043,31,31,31,32,31,31,29,30,30,29,30,30),
        44 => array(2044,31,31,32,31,31,31,30,29,30,29,30,30),
        45 => array(2045,31,32,31,32,31,30,30,29,30,29,30,30),
        46 => array(2046,31,32,31,32,31,30,30,30,29,29,30,31),
        47 => array(2047,31,31,31,32,31,31,30,29,30,29,30,30),
        48 => array(2048,31,31,32,31,31,31,30,29,30,29,30,30),
        49 => array(2049,31,32,31,32,31,30,30,30,29,29,30,30),
        50 => array(2050,31,32,31,32,31,30,30,30,29,30,29,31),
        51 => array(2051,31,31,31,32,31,31,30,29,30,29,30,30),
        52 => array(2052,31,31,32,31,31,31,30,29,30,29,30,30),
        53 => array(2053,31,32,31,32,31,30,30,30,29,29,30,30),
        54 => array(2054,31,32,31,32,31,30,30,30,29,30,29,31),
        55 => array(2055,31,31,32,31,31,31,30,29,30,29,30,30),
        56 => array(2056,31,31,32,31,32,30,30,29,30,29,30,30),
        57 => array(2057,31,32,31,32,31,30,30,30,29,29,30,31),
        58 => array(2058,30,32,31,32,31,30,30,30,29,30,29,31),
        59 => array(2059,31,31,32,31,31,31,30,29,30,29,30,30),
        60 => array(2060,31,31,32,32,31,30,30,29,30,29,30,30),
        61 => array(2061,31,32,31,32,31,30,30,30,29,29,30,31),
        62 => array(2062,30,32,31,32,31,31,29,30,29,30,29,31),
        63 => array(2063,31,31,32,31,31,31,30,29,30,29,30,30),
        64 => array(2064,31,31,32,32,31,30,30,29,30,29,30,30),
        65 => array(2065,31,32,31,32,31,30,30,30,29,29,30,31),
        66 => array(2066,31,31,31,32,31,31,29,30,30,29,29,31),
        67 => array(2067,31,31,32,31,31,31,30,29,30,29,30,30),
        68 => array(2068,31,31,32,32,31,30,30,29,30,29,30,30),
        69 => array(2069,31,32,31,32,31,30,30,30,29,29,30,31),
        70 => array(2070,31,31,31,32,31,31,29,30,30,29,30,30),
        71 => array(2071,31,31,32,31,31,31,30,29,30,29,30,30),
        72 => array(2072,31,32,31,32,31,30,30,29,30,29,30,30),
        73 => array(2073,31,32,31,32,31,30,30,30,29,29,30,31),
        74 => array(2074,31,31,31,32,31,31,30,29,30,29,30,30),
        75 => array(2075,31,31,32,31,31,31,30,29,30,29,30,30),
        76 => array(2076,31,32,31,32,31,30,30,30,29,29,30,30),
        77 => array(2077,31,32,31,32,31,30,30,30,29,30,29,31),
        78 => array(2078,31,31,31,32,31,31,30,29,30,29,30,30),
        79 => array(2079,31,31,32,31,31,31,30,29,30,29,30,30),
        80 => array(2080,31,32,31,32,31,30,30,30,29,29,30,30),
        81 => array(2081,31,31,32,32,31,30,30,30,29,30,30,30),
        82 => array(2082,30,32,31,32,31,30,30,30,29,30,30,30),
        83 => array(2083,31,31,32,31,31,30,30,30,29,30,30,30),
        84 => array(2084,31,31,32,31,31,30,30,30,29,30,30,30),
        85 => array(2085,31,32,31,32,30,31,30,30,29,30,30,30),
        86 => array(2086,30,32,31,32,31,30,30,30,29,30,30,30),
        87 => array(2087,31,31,32,31,31,31,30,30,29,30,30,30),
        88 => array(2088,30,31,32,32,30,31,30,30,29,30,30,30),
        89 => array(2089,30,32,31,32,31,30,30,30,29,30,30,30),
        90 => array(2090,30,32,31,32,31,30,30,30,29,30,30,30)
    );

    private $_nep_date = array('year' => '', 'month' => '', 'date' => '', 'day' => '', 'nmonth' => '', 'num_day' => '');

    private $_eng_date = array('year' => '', 'month' => '', 'date' => '', 'day' => '', 'emonth' => '', 'num_day' => '');

    public $debug_info = "";

    /**
     * Return day
     *
     * @param int $day
     * @return string
     */
    private function _get_day_of_week($day)
    {
        switch ($day)
        {
            case 1:
                $day = "Sunday";
                break;

            case 2:
                $day = "Monday";
                break;

            case 3:
                $day = "Tuesday";
                break;

            case 4:
                $day = "Wednesday";
                break;

            case 5:
                $day = "Thursday";
                break;

            case 6:
                $day = "Friday";
                break;

            case 7:
                $day = "Saturday";
                break;
        }
        return $day;
    }

    /**
     * Return english month name
     *
     * @param int $m
     * @return string
     */
    private function _get_english_month($m)
    {
        $eMonth = FALSE;
        switch ($m)
        {
            case 1:
                $eMonth = "January";
                break;
            case 2:
                $eMonth = "February";
                break;
            case 3:
                $eMonth = "March";
                break;
            case 4:
                $eMonth = "April";
                break;
            case 5:
                $eMonth = "May";
                break;
            case 6:
                $eMonth = "June";
                break;
            case 7:
                $eMonth = "July";
                break;
            case 8:
                $eMonth = "August";
                break;
            case 9:
                $eMonth = "September";
                break;
            case 10:
                $eMonth = "October";
                break;
            case 11:
                $eMonth = "November";
                break;
            case 12:
                $eMonth = "December";
        }
        return $eMonth;
    }

    /**
     * Return nepali month name
     *
     * @param int $m
     * @return string
     */
    private function _get_nepali_month($m)
    {
        $n_month = FALSE;

        switch ($m)
        {
            case 1:
                $n_month = "Baishak";
                break;

            case 2:
                $n_month = "Jestha";
                break;

            case 3:
                $n_month = "Ashad";
                break;

            case 4:
                $n_month = "Shrawn";
                break;

            case 5:
                $n_month = "Bhadra";
                break;

            case 6:
                $n_month = "Ashwin";
                break;

            case 7:
                $n_month = "kartik";
                break;

            case 8:
                $n_month = "Mangshir";
                break;

            case 9:
                $n_month = "Poush";
                break;

            case 10:
                $n_month = "Magh";
                break;

            case 11:
                $n_month = "Falgun";
                break;

            case 12:
                $n_month = "Chaitra";
                break;
        }
        return $n_month;
    }

    /**
     * Check if date range is in english
     *
     * @param int $yy
     * @param int $mm
     * @param int $dd
     * @return bool
     */
    private function _is_in_range_eng($yy, $mm, $dd)
    {
        if ($yy < 1944 || $yy > 2033)
        {
            return 'Supported only between 1944-2022';
        }

        if ($mm < 1 || $mm > 12)
        {
            return 'Error! month value can be between 1-12 only';
        }

        if ($dd < 1 || $dd > 31)
        {
            return 'Error! day value can be between 1-31 only';
        }

        return TRUE;
    }

    /**
     * Check if date is with in nepali data range
     *
     * @param int $yy
     * @param int $mm
     * @param int $dd
     * @return bool
     */
    private function _is_in_range_nep($yy, $mm, $dd)
    {
        if ($yy < 2000 || $yy > 2089)
        {
            return 'Supported only between 2000-2089';
        }

        if ($mm < 1 || $mm > 12)
        {
            return 'Error! month value can be between 1-12 only';
        }

        if ($dd < 1 || $dd > 32)
        {
            return 'Error! day value can be between 1-31 only';
        }

        return TRUE;
    }

    /**
     * Calculates wheather english year is leap year or not
     *
     * @param int $year
     * @return bool
     */
    public function is_leap_year($year)
    {
        $a = $year;
        if ($a % 100 == 0)
        {
            if ($a % 400 == 0)
            {
                return TRUE;
            }
            else
            {
                return FALSE;
            }
        }
        else
        {
            if ($a % 4 == 0)
            {
                return TRUE;
            }
            else
            {
                return FALSE;
            }
        }
    }

    /**
     * currently can only calculate the date between AD 1944-2033...
     *
     * @param int $yy
     * @param int $mm
     * @param int $dd
     * @return array
     */
    public function eng_to_nep($yy, $mm, $dd)
    {
        // Check for date range
        $chk = $this->_is_in_range_eng($yy, $mm, $dd);

        if($chk !== TRUE)
        {
            die($chk);
        }
        else
        {
            // Month data.
            $month  = array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);

            // Month for leap year
            $lmonth = array(31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);

            $def_eyy     = 1944;    // initial english date.
            $def_nyy     = 2000;
            $def_nmm     = 9;
            $def_ndd     = 17 - 1;  // inital nepali date.
            $total_eDays = 0;
            $total_nDays = 0;
            $a           = 0;
            $day         = 7 - 1;
            $m           = 0;
            $y           = 0;
            $i           = 0;
            $j           = 0;
            $numDay      = 0;

            // Count total no. of days in-terms year
            for ($i = 0; $i < ($yy - $def_eyy); $i++) //total days for month calculation...(english)
            {
                if ($this->is_leap_year($def_eyy + $i) === TRUE)
                {
                    for ($j = 0; $j < 12; $j++)
                    {
                        $total_eDays += $lmonth[$j];
                    }
                }
                else
                {
                    for ($j = 0; $j < 12; $j++)
                    {
                        $total_eDays += $month[$j];
                    }
                }
            }

            // Count total no. of days in-terms of month
            for ($i = 0; $i < ($mm - 1); $i++)
            {
                if ($this->is_leap_year($yy) === TRUE)
                {
                    $total_eDays += $lmonth[$i];
                }
                else
                {
                    $total_eDays += $month[$i];
                }
            }

            // Count total no. of days in-terms of date
            $total_eDays += $dd;


            $i           = 0;
            $j           = $def_nmm;
            $total_nDays = $def_ndd;
            $m           = $def_nmm;
            $y           = $def_nyy;

            // Count nepali date from array
            while ($total_eDays != 0)
            {
                $a = $this->_bs[$i][$j];

                $total_nDays++;     //count the days
                $day++;             //count the days interms of 7 days

                if ($total_nDays > $a)
                {
                    $m++;
                    $total_nDays = 1;
                    $j++;
                }

                if ($day > 7)
                {
                    $day = 1;
                }

                if ($m > 12)
                {
                    $y++;
                    $m = 1;
                }

                if ($j > 12)
                {
                    $j = 1;
                    $i++;
                }

                $total_eDays--;
            }

            $numDay = $day;

            $this->_nep_date['year']    = $y;
            $this->_nep_date['month']   = $m;
            $this->_nep_date['date']    = $total_nDays;
            $this->_nep_date['day']     = $this->_get_day_of_week($day);
            $this->_nep_date['nmonth']  = $this->_get_nepali_month($m);
            $this->_nep_date['num_day'] = $numDay;
            return $this->_nep_date;
        }
    }


    /**
     * Currently can only calculate the date between BS 2000-2089
     *
     * @param int $yy
     * @param int $mm
     * @param int $dd
     * @return array
     */
    public function nep_to_eng($yy, $mm, $dd)
    {
        $def_eyy     = 1943;
        $def_emm     = 4;
        $def_edd     = 14 - 1;  // initial english date.
        $def_nyy     = 2000;
        $def_nmm     = 1;
        $def_ndd     = 1;       // iniital equivalent nepali date.
        $total_eDays = 0;
        $total_nDays = 0;
        $a           = 0;
        $day         = 4 - 1;
        $m           = 0;
        $y           = 0;
        $i           = 0;
        $k           = 0;
        $numDay      = 0;

        $month  = array(
            0,
            31,
            28,
            31,
            30,
            31,
            30,
            31,
            31,
            30,
            31,
            30,
            31
        );
        $lmonth = array(
            0,
            31,
            29,
            31,
            30,
            31,
            30,
            31,
            31,
            30,
            31,
            30,
            31
        );

        // Check for date range
        $chk = $this->_is_in_range_nep($yy, $mm, $dd);

        if ( $chk !== TRUE)
        {
            die($chk);
        }
        else
        {
            // Count total days in-terms of year
            for ($i = 0; $i < ($yy - $def_nyy); $i++)
            {
                for ($j = 1; $j <= 12; $j++)
                {
                    $total_nDays += $this->_bs[$k][$j];
                }
                $k++;
            }

            // Count total days in-terms of month
            for ($j = 1; $j < $mm; $j++)
            {
                $total_nDays += $this->_bs[$k][$j];
            }

            // Count total days in-terms of dat
            $total_nDays += $dd;

            // Calculation of equivalent english date...
            $total_eDays = $def_edd;
            $m           = $def_emm;
            $y           = $def_eyy;
            while ($total_nDays != 0)
            {
                if ($this->is_leap_year($y))
                {
                    $a = $lmonth[$m];
                }
                else
                {
                    $a = $month[$m];
                }

                $total_eDays++;
                $day++;

                if ($total_eDays > $a)
                {
                    $m++;
                    $total_eDays = 1;
                    if ($m > 12)
                    {
                        $y++;
                        $m = 1;
                    }
                }

                if ($day > 7)
                {
                    $day = 1;
                }

                $total_nDays--;
            }

            $numDay = $day;

            $this->_eng_date['year']    = $y;
            $this->_eng_date['month']   = $m;
            $this->_eng_date['date']    = $total_eDays;
            $this->_eng_date['day']     = $this->_get_day_of_week($day);
            $this->_eng_date['nmonth']  = $this->_get_english_month($m);
            $this->_eng_date['num_day'] = $numDay;

            return $this->_eng_date;
        }
    }
}

//  Example:
//  $cal = new Nepali_Calendar();
//  print_r ($cal->eng_to_nep(2008,11,23));
//  print_r($cal->nep_to_eng(2065,8,8));

      你只需要复制和粘贴，魔法就发生了。

      【讨论】：

      • 我仍然有同样的问题，当我输入 2076-07-01 到 2076-07-30 这样的日期时，它给了 29 天，但我想要 30
      • bro 30-1 总是给出 29。如果你想要包含减法，你需要在最后的解决方案中添加 1。我认为您的逻辑在某些地方不正确。如果您想获得不同 t 月日期之间的减法，您可以使用转换器来获得差异。
      • 也许你是对的，但这就是要求，30 到 15 必须是 15，30 到 1 应该是 30
      • 日期减法以自己独有的方式工作。您可以在末尾添加一个，以便获得所需的输出。
      • 如果此答案对您有帮助，请为答案投票并将其选为正确答案。支持社区
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