JDMonthName
(PHP 4, PHP 5)
JDMonthName — Returns a month name
Описание
string jdmonthname
( int $julianday
, int $mode
)
Returns a string containing a month name. mode tells this function which calendar to convert the Julian Day Count to, and what type of month names are to be returned.
| Mode | Meaning | Values |
|---|---|---|
| 0 | Gregorian - abbreviated | Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec |
| 1 | Gregorian | January, February, March, April, May, June, July, August, September, October, November, December |
| 2 | Julian - abbreviated | Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec |
| 3 | Julian | January, February, March, April, May, June, July, August, September, October, November, December |
| 4 | Jewish | Tishri, Heshvan, Kislev, Tevet, Shevat, AdarI, AdarII, Nisan, Iyyar, Sivan, Tammuz, Av, Elul |
| 5 | French Republican | Vendemiaire, Brumaire, Frimaire, Nivose, Pluviose, Ventose, Germinal, Floreal, Prairial, Messidor, Thermidor, Fructidor, Extra |
Список параметров
- jday
-
The Julian Day to operate on
- calendar
-
The calendar to take the month name from
Возвращаемые значения
The month name for the given Julian Day and calendar .
Коментарии
Regarding the jewish date system. It may be worth noting the following peculiarities, some obvious some not so.1. Jewish days start at sunset NOT midnight so when converting from a Gregorian date to a Jewish one it might be worth asking if the date/time occurred 'after sunset'.
2. Jewish leap years follow a 19 year cycle which can be calculated like this:
function isJLeapYear($JYear) {
if ( ((7 * $JYear + 1) % 19) < 7 )
return true;
else
return false;
}
3. During a leap year a new leap-month called "Adar I" is inserted BEFORE the normal month of Adar.
4. During leap years, Adar is renamed "Adar II".
5. Adar/Adar II has 29 days
6. Adar I has 30 days
7. Cheshvan & Kislev have between 29 & 30 Days
8. Leap years have between 383 and 385 days.
8. non-leap years have between 353 and 355 days.
9 . In a 354-day year, months have alternating 30 and 29 day lengths.
10. In a 353-day year, the month of Kislev is reduced to 29 days.
11. In a 355-day year, the month of Cheshvan is increased to 30 days.
12. Leap years years follow the same pattern, with the addition of the 30-day Adar I as well.