Special Date Calculation

[TVining]

Okay, here's one for you....

If you start my class on Monday,Tuesday, Wednesday or Thursday, you will Graduate on the 7th Friday. ALWAYS. You always grad on Friday.

I want to make a web form that you can put a start date in, and it will return the Grad date.

Any ideas?
I've thought about building a database table with the dates in it, and also just using PHP or Javascript to do the calculations.

[edwardsbc]

How about this:

$grad_date=strtotime('+6 week',strtotime(date('Y-m-d',strtotime('next Friday',$start_date))));

This assumes $start_date begins as a unix timestamp. Disclaimer: This is untested, but a little experimentation should get it to work.