Add days to a date in PHP

Question

Is there any php function available where I can add days to a date to make up another date? For example, I have a date in the following format: 27-December-2011

If I

Answer 1

Actually it's easier than all that.

$some_var = date("Y-m-d",strtotime("+7 day"))

You can use a variable instead of the string, of course. It will be great if the people answering the questions, won't complicate things. Less code, means less time to waste on the server ;).