The jdtojulian() function is an inbuilt function in PHP that is used to convert a Julian day count to a Julian calendar date. It converts Julian Day Count to a string containing the Julian Calendar Date in the month/day/year format.
Syntax:
int jdtojulian( $julianday )
Parameters: This function accepts a single parameter $julianday which is mandatory. It contains Julian's day as an integer.
Return Value: This function returns the Julian Date as a string in the month/day/year format.
The below programs illustrate the jdtojulian() function in PHP.
Program 1:
<?php
// Converts a Julian calendar date
// to Julian Day count.
$jdate = juliantojd(10, 25, 1996);
// Print the Julian Day count.
echo "JulianToJD is : ".$jdate . "\n";
// First converts the julian day to Julian
// Calendar date and then print it.
echo "JDToJulian is : ".jdtojulian($jdate);
?>
Output:
JulianToJD is : 2450395 JDToJulian is : 10/25/1996
Program 2:
<?php
// Converts Julian calendar Date
// to Julian Day count.
$jdate = juliantojd(1, 10, 1998);
// Print the Julian Day count
echo "Julian Day Count : ".$jdate . "\n";
// Converts Julian Day count to
// the Julian calendar Date
$julian = jdtojulian($jdate);
// Print the julian calendar Date.
echo "Julian Calendar Date : ".$julian;
?>
Output:
Julian Day Count : 2450837 Julian Calendar Date : 1/10/1998
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Reference: https://www.php.net/manual/en/function.jdtojulian.php