date from weeknumber

From: Fredrik (sd_at_nextgentel.no)
Date: 11/20/03 

To: php-general@lists.php.net
Date: Thu, 20 Nov 2003 15:42:20 +0100

Hi

I want to get the last date in a week.
Is there anybody who know how i can do this.

something like this:

function date getDateFromWeek( $week, $year){
    ...
    ...
    return date;
}

 - Petter