Date Time Problem

[wylim]

I am haveing trouble with the date time function. Here is what I need to do. I grab the time and post it into a vairable called $open_date then I need to take the $open_date vairable and add 30 days to it in a for loop. But I have no Idea how to do this. This 30 days will be inserted into a selection box and display the dates for the next 30 days. Anyone have any ideas.

[juschillinnow]

$dayThirty = date('m, d, Y', time()[phone]);