note 106363 added to function.date
| From: | martin at eksperimentrum dot dk | Date: | Mon, 31 Oct 2011 10:51:33 +0000 |
| Subject: | note 106363 added to function.date | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-184242@lists.php.net to get a copy of this message | ||
How to get the week starting date by giving a week number and the year. Monday first day in week
function WeekStartDate($week,$year,$format="d-m-Y") {
date_default_timezone_set('Europe/Paris');
$firstDayInYear=date("N",mktime(0,0,0,1,1,$year));
if ($firstDayInYear<5)
$shift=-($firstDayInYear-1)*86400;
else
$shift=(8-$firstDayInYear)*86400;
if ($week>1) $weekInSeconds=($week-1)*604800; else $weekInSeconds=0;
$timestamp=mktime(0,0,0,1,1,$year)+$weekInSeconds+$shift;
return date($format,$timestamp);
}
echo WeekStartDate(44,2011);
//result: 31-10-2011
----
Server IP: 69.147.83.197
Probable Submitter: 80.199.142.174
----
Manual Page -- http://www.php.net/manual/en/function.date.php
Edit -- https://master.php.net/note/edit/106363
Del: integrated -- https://master.php.net/note/delete/106363/integrated
Del: useless -- https://master.php.net/note/delete/106363/useless
Del: bad code -- https://master.php.net/note/delete/106363/bad+code
Del: spam -- https://master.php.net/note/delete/106363/spam
Del: non-english -- https://master.php.net/note/delete/106363/non-english
Del: in docs -- https://master.php.net/note/delete/106363/in+docs
Del: other reasons-- https://master.php.net/note/delete/106363
Reject -- https://master.php.net/note/reject/106363
Search -- https://master.php.net/manage/user-notes.php