PHP | jdtogregorian() Function

The jdtogregorian() function is a built-in function which converts a Julian Day Integer to Gregorian date. The function accepts a Julian Day integer and returns the converted Gregorian Date in $month / $day / $year. Syntax:

jdtogregorian($jd)

Parameters: The function accepts one mandatory parameter $jd which specifies the Julian day. Return Value: The function returns the Gregorian date. The return format of the date is $month / $day / $year. Examples:

Input : 2458209
Output : 3/31/2018

Input : 2458236
Output : 4/27/2018

Below programs illustrate the jdtogregorian() function. Program 1: The program below illustrate the use of jdtogregorian() function. php

<?php
// PHP program to demonstrate the
// use of jdtogregorian() function 

// converts date to julian integer 
$jd = gregoriantojd(3, 31, 2018);

// converts the Julian day to Gregorian date
$date = jdtogregorian($jd);

// prints the date
echo ($date), "\n"; 

?>

Output:

3/31/2018

Program 2: The program below shows the output when an invalid Julian day integer is passed. php

<?php
// PHP program to demonstrate the output
// of jdtogregorian() function when 0 is 
// passed as Julian Day, which is invalid

// converts the Julian day to Gregorian date 
// invalid hence outputs 0/0/0 
$date = jdtogregorian(0);

// prints the date
echo ($date), "\n"; 

?>

Output:

0/0/0

Reference: https://www.php.net/manual/en/function.jdtogregorian.php