PersianDateConverter.php in Persian Date for Drupal 8 8

Namespace

Drupal\persian_date\Converter

File

src/Converter/PersianDateConverter.php

<?php

/*
 * This file is part of the Persian Date (Object Oriented API) package.
 *
 * (c) Amin Alizade <[e-mail]>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace Drupal\persian_date\Converter;

use Drupal\Core\Datetime\DrupalDateTime;
use ReflectionObject;

/**
 * This class converts Gregorian datetime to Persian datetime and reverse.
 *
 * @package Drupal\persian_date\Convertor
 */
class PersianDateConverter {

  /**
   * Convert Gregorian date parameters to Persian.
   *
   * @param int $year Gregorian year
   * @param int $month Gregorian month
   * @param int $day Gregorian day
   * @param string $mod
   * @return array|string
   */
  static function gregorian_to_jalali($year, $month, $day, $mod = '') {
    $g_d_m = array(
      0,
      31,
      59,
      90,
      120,
      151,
      181,
      212,
      243,
      273,
      304,
      334,
    );
    $jy = $year <= 1600 ? 0 : 979;
    $year -= $year <= 1600 ? 621 : 1600;
    $gy2 = $month > 2 ? $year + 1 : $year;
    $days = 365 * $year + (int) (($gy2 + 3) / 4) - (int) (($gy2 + 99) / 100) + (int) (($gy2 + 399) / 400) - 80 + $day + $g_d_m[$month - 1];
    $jy += 33 * (int) ($days / 12053);
    $days %= 12053;
    $jy += 4 * (int) ($days / 1461);
    $days %= 1461;
    $jy += (int) (($days - 1) / 365);
    if ($days > 365) {
      $days = ($days - 1) % 365;
    }
    $jm = $days < 186 ? 1 + (int) ($days / 31) : 7 + (int) (($days - 186) / 30);
    $jd = 1 + ($days < 186 ? $days % 31 : ($days - 186) % 30);
    return $mod == '' ? array(
      $jy,
      $jm,
      $jd,
    ) : $jy . $mod . $jm . $mod . $jd;
  }

  /**
   * Convert Persian date parameters to Gregorian.
   *
   * @param int $year Persian year
   * @param int $month Persian month
   * @param int $day Persian day
   * @param string $mod
   * @return array|string
   */
  static function jalali_to_gregorian($year, $month, $day, $mod = '') {
    $gy = $year <= 979 ? 621 : 1600;
    $year -= $year <= 979 ? 0 : 979;
    $days = 365 * $year + (int) ($year / 33) * 8 + (int) (($year % 33 + 3) / 4) + 78 + $day + ($month < 7 ? ($month - 1) * 31 : ($month - 7) * 30 + 186);
    $gy += 400 * (int) ($days / 146097);
    $days %= 146097;
    if ($days > 36524) {
      $gy += 100 * (int) (--$days / 36524);
      $days %= 36524;
      if ($days >= 365) {
        $days++;
      }
    }
    $gy += 4 * (int) ($days / 1461);
    $days %= 1461;
    $gy += (int) (($days - 1) / 365);
    if ($days > 365) {
      $days = ($days - 1) % 365;
    }
    $gd = $days + 1;
    foreach (array(
      0,
      31,
      ($gy % 4 == 0 and $gy % 100 != 0 or $gy % 400 == 0) ? 29 : 28,
      31,
      30,
      31,
      30,
      31,
      31,
      30,
      31,
      30,
      31,
    ) as $gm => $v) {
      if ($gd <= $v) {
        break;
      }
      $gd -= $v;
    }
    return $mod == '' ? array(
      $gy,
      $gm,
      $gd,
    ) : $gy . $mod . $gm . $mod . $gd;
  }

  /**
   * Converts wrongly formatted shamsi datetime to standard one
   *
   * @param mixed $dateTime
   * @return \DateTime
   */
  public static function normalizeDate($dateTime) {
    $return = PersianDateFactory::buildFromExactDate($dateTime
      ->format('H'), $dateTime
      ->format('i'), $dateTime
      ->format('s'), $dateTime
      ->format('m'), $dateTime
      ->format('d'), $dateTime
      ->format('Y'))
      ->getOriginalDateTime();
    return $return;
  }

}

Classes

Name	Description
PersianDateConverter	This class converts Gregorian datetime to Persian datetime and reverse.