Php/docs/function.cal-to-jd
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cal_to_jd
(PHP 4 >= 4.1.0, PHP 5, PHP 7)
cal_to_jd — Converts from a supported calendar to Julian Day Count
Description
cal_to_jd
( int $calendar
, int $month
, int $day
, int $year
) : int
cal_to_jd() calculates the Julian day count
for a date in the specified calendar.
Supported calendars are
CAL_GREGORIAN,
CAL_JULIAN,
CAL_JEWISH and
CAL_FRENCH.
Parameters
calendar- Calendar to convert from, one of
CAL_GREGORIAN,CAL_JULIAN,CAL_JEWISHorCAL_FRENCH. month- The month as a number, the valid range depends on the
calendar day- The day as a number, the valid range depends on the
calendar year- The year as a number, the valid range depends on the
calendar
Return Values
A Julian Day number.
See Also
- cal_from_jd() - Converts from Julian Day Count to a supported calendar
- frenchtojd() - Converts a date from the French Republican Calendar to a Julian Day Count
- gregoriantojd() - Converts a Gregorian date to Julian Day Count
- jewishtojd() - Converts a date in the Jewish Calendar to Julian Day Count
- juliantojd() - Converts a Julian Calendar date to Julian Day Count
- unixtojd() - Convert Unix timestamp to Julian Day
