Bug #17016: function juliantojd and reverse jdtojulian wrong output
| From: | nchesberg at t-online dot de | Date: | Sun, 05 May 2002 14:47:18 +0000 |
| Subject: | Bug #17016: function juliantojd and reverse jdtojulian wrong output | ||
| Groups: | php.bugs | ||
| Request: | Send a blank email to php-bugs+get-6954@lists.php.net to get a copy of this message | ||
From: nchesberg@t-online.de
Operating system: linux/windows
PHP version: 4.1.2
PHP Bug Type: *Calendar problems
Bug description: function juliantojd and reverse jdtojulian wrong output
in function juliantojd (and reverse jdtojulian) the wrong calendar rules
are implemented.
the output of function for the date 1/1/1985 is 2446080 but
the correct julian date is 2446067 (for example).
below the rules to convert a julian date into jd as a php-script:
<?php
$a=$year;
$m=$month;
$t=$day;
$j=$a;
IF ($a<0){$j=$j+1;}
IF ($m<3){
$m=$m+12;
$j=$j-1;
}
$juldat=0;
IF (($a+$m/100+$tag/10000)>1582.1005){
$juldat= floor($j/100);
$juldat=2-$juldat+ floor($juldat/4);
}
IF ($a<=0){
$juldat=- floor(.75-365.25*$j)+ floor(30.6001*($m+1))+$t+1720995;
}
ELSE{
$juldat=$juldat+ floor(365.25*$j)+ floor(30.6001*($m+1))+$t+1720995;
}
?>
--
Edit bug report at http://bugs.php.net/?id=17016&edit=1
--
Fixed in CVS: http://bugs.php.net/fix.php?id=17016&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=17016&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=17016&r=needtrace
Try newer version: http://bugs.php.net/fix.php?id=17016&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=17016&r=support
Expected behavior: http://bugs.php.net/fix.php?id=17016&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=17016&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=17016&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=17016&r=globals