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PHP Quiz PHP CertificatePHP jdtounix() Function
Example
Convert a Gregorian date to a Julian Day Count; then convert the Julian Day Count to Unix timestamp:
<?php
$jd=gregoriantojd(10,3,1975);
echo jdtounix($jd);
?>
$jd=gregoriantojd(10,3,1975);
echo jdtounix($jd);
?>
Run example »
Definition and Usage
The jdtounix() function converts Julian Day Count to Unix timestamp.
Note: This function will return false if the parameter jd is not inside the Unix epoch (which means that the Gregorian years must be between 1970 and 2037 OR that jd >= 2440588 and jd <= 2465342). The time returned is local time.
Tip: Look at the unixtojd() function to convert Unix timestamp to Julian Day Count.
Syntax
jdtounix(jd);
| Parameter | Description |
|---|---|
| jd | Required. A Julian Day number between 2440588 and 2465342 |
Technical Details
| Return Value: | Returns the Unix timestamp for the start of the specified Julian day |
|---|---|
| PHP Version: | 4+ |
PHP Calendar Reference
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