opencafe / datium

   * @since  Oct, 17 2015

   * @return object

   */

    public function hijriToJalali($date_time)

    {

          $this->date_time = $date_time;

          $this->year = $this->date_time->format('Y');

          $this->month = $this->date_time->format('m');

          $this->day = $this->date_time->format('d');

          $days_of_year = 0;

          $this->config = include __DIR__.'/Hijri.php';

        foreach ($this->config[ 'month_days_number' ] as $month => $value) {

            if ($this->month > $month) {

                $days_of_year += $value;

            }

        }

          $days_of_year += $this->day;

          $days_of_leap_years =  intval(( ( $this->year - 1 ) / 3 ));

          $days_of_hijri_years = ( ( ( $this->year - 1 ) * 354 ) + $days_of_year + $days_of_leap_years );

          $days_of_jalali_years = $days_of_hijri_years + 179;

          $days_of_jalali_years = $days_of_jalali_years - intval(( ( $this->year - 43 ) / 4 ));

          $jalali_month = ( $days_of_jalali_years % 365 );

          $jalali_year = intval($days_of_jalali_years / 365) + 1;

          $this->config = include __DIR__.'/Jalali.php';

        foreach ($this->config[ 'month_days_number' ] as $month => $value) {

            if ($jalali_month < $value) {

                break;

            }

              $jalali_month -= $value;

        }

          $jalali_day = $jalali_month;

          $jalali_month = $month;

          $this->date_time->setDate($jalali_year, $jalali_month, $jalali_day);

         return $this->date_time;

    }

    /**

    * convert hijri year to gregorian year

    * @since  Oct, 17 2015

    * @return object

    */

    public function hijriToGregorian($date_time)

    {

        $this->date_time = $date_time;

        $this->year = $this->date_time->format('Y');

        $this->month = $this->date_time->format('m');

        $this->day = $this->date_time->format('d');

        $days_of_year = 0;

        $this->config = include __DIR__.'/Hijri.php';

        foreach ($this->config[ 'month_days_number' ] as $month => $value) {

            if ($this->month > $month) {

                $days_of_year += $value;

            }

        }

        $days_of_year += $this->day;

        $days_of_leap_years =  intval(( ( $this->year - 1 ) / 3 ));

        $days_of_hijri_years = ( ( ( $this->year - 1 ) * 354 ) + $days_of_year + $days_of_leap_years );

        $days_of_gregorain_years = $days_of_hijri_years + 227078;

        $days_of_gregorain_years = $days_of_gregorain_years - intval(( ( $this->year + 578 ) / 4 ));

        $gregorian_month = ( $days_of_gregorain_years % 365 );

        $gregorian_year = intval($days_of_gregorain_years / 365) + 1;

        $this->config = include __DIR__.'/Gregorian.php';

        foreach ($this->config[ 'month_days_number' ] as $month => $value) {

            if ($gregorian_month < $value) {

                break;

            }

            $gregorian_month -= $value;

        }

        $gregorian_day = $gregorian_month;

        $gregorian_month = $month;

        $this->date_time->setDate($gregorian_year, $gregorian_month, $gregorian_day);

         return $this->date_time;

    }

}