Date Time functions

[eduard]

Hey there, I have a promblem using date and time functions... On my website, users may anter a weeknumber and a year, for example 45 2001. Now I want PHP to return the date (Day, month and year) of the selected week's monday.
In this example (45 2001) php should return 05-11-2001
I couldn't really figure this out, can anybody help me?

[toma42]

So they enter a julian date and you want the monday for the date that day falls in?

Use Date/Calc.php found in PEAR. Search the machine you installed php on and you should find it.

[yendor]

Here is one way you could do it.

function Week2Date($wk,$year)
{
//Gets the first monday of the year
for($x=0;$x<=6;$x++)
{
$ts = mktime(0,0,0,1,1+$x,$year);
$chk_day = date("D",$ts);
if($chk_day=='Mon')
{
$ts=$ts;
break;
}
}
// not sure why, had to -1 from $wk
$ts+= (((6060)24)(7($wk-1)));
$date = date("d-m-Y",$ts);
return $date;
}

//Try it

$date = Week2Date("45","2001");
echo $date;

You'll want to test it thoroughly, cause I didn't have the time to do so.

Rodney

[yendor]

Sorry about the sloppy code, but this forum appears to strip all indents.

[eduard]

No problem, this was exactly what I wanted! Many thanks!

[yendor]

No problem. Dates can be a serious pain. My first project in php was very "Date Intensive". I learned, the hard way, how to deal with dates. If you have any more questions regaurding dates, or any other questions, let me know. I'm just glad it worked for you.

Rodney