Quick help with dates

[Anon]

OK here is the deal. I know how to get the date, and how to get a date a certain number of days away. My problem is that I only know how to do it with the current date.

I have a date such as 01/01/2001
It is not generated, it's already there.

I need help being able to add days to it.

Such as adding 45 days to it, will give me 02/15/2001

Thanks

[Anon]

NEVERMIND, I got it with one random thought

this is that I did...

$m = 01;
$d = 01;
$y = 2001;
$shift = some days

$nextdate=mktime(0,0,0,$m,$d+$shift,$y);
$new=date("m/d/Y",$nextdate);
print "$new";

Unless someone has a better way.
But this is perfect for me because my dates are already in 3 parts.