PHP JulianToJD() function
Complete PHP Calendar Reference
Definition and Usage
The JulianToJD() function converts a Julian calendar date to a Julian day count.
Syntax
juliantojd(month,day,year)
|
| Parameter |
Description |
| month |
Required. Specifies the month |
| day |
Required. Specifies the day |
| year |
Required. Specifies the year. Valid range is 4713 B.C. to
9999 A.D. |
Tips and Notes
Note: Although this function can handle dates back to 4713 B.C., you
should notice that the Julian calendar was created in 46 B.C., and it
did not stabilize until at least 8 A.D.
Also, the beginning of a year varied from one culture to another - not all
accepted January as the first month. Remember that the current calendar
being used worldwide is the Gregorian calendar. The gregoriantojd() function can
be used to convert such dates to their Julian Day count.
Example
<?php
$jd = juliantojd(10,3,1975);
echo($jd . "<br />");
$julian = jdtojulian($jd);
echo($julian);
?>
|
The output of the code above will be:
Complete PHP Calendar Reference
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