week + year = date

[Anon]

How can I get the date of a certain weekday in a given week if all I have is the week and year. This must work at all times not just for the current week.

Thanks alot in advance

/Erra

[ziah75]

I did a quick search and found some useful code in a post, here http://www.php.net/manual/en/function.date.php
Which returns the first date in the week.

I modified it a bit, so it hopefully suits your needs. =)

I've tested it a bit, but not fully verified the script, so I guess you should check if it works with leap-years and such...

Anyway, here it is.

<?php

//weekday, 0 is monday, 6 is sunday
function get_date_from_week($year, $week, $weekday)
{
$first_day = strtotime($year."-01-01");
$is_monday = date("w", $first_day) == 1;
$is_weekone = strftime("%V", $first_day) == 1;
if($is_weekone)
{
$week_one_start = $is_monday ? $first_day : strtotime("last
monday", $first_day);
}
else
{
$week_one_start = strtotime("next monday", $first_day);
}
return $week_one_start+(3600247($week-1)+(360024*$weekday));
}

//gives the date for tuesday, in week 29, year 2002
$formatted_date = date("Y-m-d", get_date_from_week( 2002, 29, 1 ) );

echo $formatted_date;

?>

/Anders

[Anon]

Thanks alot for a quick answer.
It works perfectly.

thanks

/Erra