[Tfug] PHP calculating date from week

[Judd Pickell]

What about doing a simple process of:

$time = mktime(0,0,0,1,1,$year);
while (date('D', $time + (60*60*24*7*($numweek))) != 'Sunday'){
     $time += (60*60*24);
}

Is that getting to what you are looking for? Or am I misunderstanding your
question.

On 6/20/06, Adrian <choprboy at dakotacom.net> wrote:
>
> Anybody have a simple week to date function in PHP worked out? I have been
> banging my head trying to figure out something simple... without 20 lines
> of
> recursive logic to handle corner cases...
>
> There are tons of scripts, and tons of built in funtions, that do the
> oppposite, taking a day/month/year and calculating the week number (i.e.
> date("W",$timestamp)). But I want to do the reverse, I want to know the
> date
> of Sunday for a given week in a year, for example the 23rd week of 2006.
>
> I have been using strtotime() in several different ways, but it does not
> directly handle it. The best approach I have up with so far is a multiple
> step:
>
> $yearstamp = strtotime($year."-01-01");
> $weekstamp = strtotime("+".($week - 1)." week",$yearstamp);
> if(date("w",$weekstamp) == 0){
>   $datestamp = $weekstamp;
> }else{
>   $datestamp = strtotime("last Sunday",$weekstamp);
> }
>
> Still kind of ugly and CPU intensive.
>
> Adrian
>
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