note 84533 modified in function.date by danbrown
| From: | danbrown@php.net | Date: | Sun, 20 Jul 2008 02:38:55 +0000 |
| Subject: | note 84533 modified in function.date by danbrown | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-141972@lists.php.net to get a copy of this message | ||
to get the date of the monday from a week these function is useful:
<?php
/* Get First Calendar Week of Year x*/
function firstkw($jahr)
{
$erster = mktime(0,0,0,1,1,$jahr);
$wtag = date('w',$erster);
if ($wtag <= 4) {
/**
* Donnerstag oder kleiner: auf den Montag zurückrechnen.
*/
$montag = mktime(0,0,0,1,1-($wtag-1),$jahr);
} else {
/**
* auf den Montag nach vorne rechnen.
*/
$montag = mktime(0,0,0,1,1+(7-$wtag+1),$jahr);
}
return $montag;
}
/*GET timestamp of monday of month x*/
function mondaykw($kwtime)
{
$firstmonday =$this->firstkw(date("Y", $kwtime));
$mon_monat = date('m',$firstmonday);
$mon_jahr = date('Y',$firstmonday);
$mon_tage = date('d',$firstmonday);
$tage = (date("W", $kwtime)-1)*7;
$mondaykw = mktime(0,0,0,$mon_monat,$mon_tage+$tage,$mon_jahr);
return $mondaykw;
}
echo mondaykw(time()); //1215986400
?>
--was--
to get the date of the monday from a week these function is useful:
/* Get First Calendar Week of Year x*/
function firstkw($jahr)
{
$erster = mktime(0,0,0,1,1,$jahr);
$wtag = date('w',$erster);
if ($wtag <= 4) {
/**
* Donnerstag oder kleiner: auf den Montag zurückrechnen.
*/
$montag = mktime(0,0,0,1,1-($wtag-1),$jahr);
} else {
/**
* auf den Montag nach vorne rechnen.
*/
$montag = mktime(0,0,0,1,1+(7-$wtag+1),$jahr);
}
return $montag;
}
/*GET timestamp of monday of month x*/
function mondaykw($kwtime)
{
$firstmonday =$this->firstkw(date("Y", $kwtime));
$mon_monat = date('m',$firstmonday);
$mon_jahr = date('Y',$firstmonday);
$mon_tage = date('d',$firstmonday);
$tage = (date("W", $kwtime)-1)*7;
$mondaykw = mktime(0,0,0,$mon_monat,$mon_tage+$tage,$mon_jahr);
return $mondaykw;
}
echo mondaykw(time()); //1215986400
http://php.net/manual/en/function.date.php