cal_to_jd
PHP 4 >= 4.1.0, PHP 5, PHP 7, PHP 8
cal_to_jd - Converts from a supported calendar to Julian Day Count
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_JEWISH or CAL_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.