note 32561 modified in function.jdtogregorian by danbrown
| From: | danbrown@php.net | Date: | Sun, 20 Jul 2008 02:09:20 +0000 |
| Subject: | note 32561 modified in function.jdtogregorian by danbrown | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-141942@lists.php.net to get a copy of this message | ||
Julian to Gregorian date change.
If you do not have the calendar extensions loaded this is little function works realy well.
<?php
function jd_to_greg($julian) {
$julian = $julian - 1721119;
$calc1 = 4 * $julian - 1;
$year = floor($calc1 / 146097);
$julian = floor($calc1 - 146097 * $year);
$day = floor($julian / 4);
$calc2 = 4 * $day + 3;
$julian = floor($calc2 / 1461);
$day = $calc2 - 1461 * $julian;
$day = floor(($day + 4) / 4);
$calc3 = 5 * $day - 3;
$month = floor($calc3 / 153);
$day = $calc3 - 153 * $month;
$day = floor(($day + 5) / 5);
$year = 100 * $year + $julian;
if ($month < 10) {
$month = $month + 3;
}
else {
$month = $month - 9;
$year = $year + 1;
}
return "$day.$month.$year";
}
?>
--was--
Julian to Gregorian date change.
If you do not have the calendar extensions loaded this is little function works realy well.
function jd_to_greg($julian) {
$julian = $julian - 1721119;
$calc1 = 4 * $julian - 1;
$year = floor($calc1 / 146097);
$julian = floor($calc1 - 146097 * $year);
$day = floor($julian / 4);
$calc2 = 4 * $day + 3;
$julian = floor($calc2 / 1461);
$day = $calc2 - 1461 * $julian;
$day = floor(($day + 4) / 4);
$calc3 = 5 * $day - 3;
$month = floor($calc3 / 153);
$day = $calc3 - 153 * $month;
$day = floor(($day + 5) / 5);
$year = 100 * $year + $julian;
if ($month < 10) {
$month = $month + 3;
}
else {
$month = $month - 9;
$year = $year + 1;
}
return "$day.$month.$year";
}
http://php.net/manual/en/function.jdtogregorian.php