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PHP Quiz PHP CertificatePHP cal_to_jd() Function
Example
Convert 20th of June, 2007 (Gregorian calendar) to Julian Day Count:
<?php
$d=cal_to_jd(CAL_GREGORIAN,6,20,2007);
echo $d;
?>
$d=cal_to_jd(CAL_GREGORIAN,6,20,2007);
echo $d;
?>
Run example »
Definition and Usage
The cal_to_jd() function converts a date in a specified calendar to Julian Day Count.
Syntax
cal_to_jd(calendar,month,day,year);
| Parameter | Description |
|---|---|
| calendar | Required. Specifies the calendar to convert from. Must be one of the
following values:
|
| month | Required. Specifies the month as a number |
| day | Required. Specifies the day as a number |
| year | Required. Specifies the year as a number |
Technical Details
| Return Value: | Returns a Julian Day number |
|---|---|
| PHP Version: | 4.1+ |
PHP Calendar Reference
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