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cal_to_jd
Converts from a supported calendar to Julian Day Count
(PHP 4 >= 4.0.7, PHP 5)
int cal_to_jd ( int calendar, int month, int day, int year )
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