JulianToJD
(PHP 4, PHP 5)
JulianToJD — Converts a Julian Calendar date to Julian Day Count
Description
int juliantojd
( int $month
, int $day
, int $year
)
Although this function can handle dates all the way back to 4713
B.C., such use may not be meaningful. The calendar was created in
46 B.C., but the details did not stabilize until at least 8 A.D.,
and perhaps as late at the 4th century. Also, the beginning of a
year varied from one culture to another - not all accepted
January as the first month.
Caution
Remember, the current calendar system being used worldwide is the
Gregorian calendar. gregoriantojd() can be used to
convert such dates to their Julian Day count.
Parameters
-
month
-
The month as a number from 1 (for January) to 12 (for December)
-
day
-
The day as a number from 1 to 31
-
year
-
The year as a number between -4713 and 9999
Return Values
The julian day for the given julian date as an integer.
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