strtotime

I have used the strtotime command to calculate a week ago (among other things) with syntax like this: $one_week_ago = strtotime("-7 days"); $one_week_ago = date('Y-m-d', $one_week_ago); How would you use this command to figure out the last day of the month in two months from now --- Today is October 24th 2006; the results I am trying to generate are December 31st 2006. I want to keep the same result until the end of October and then on November 1st and throughout November the result to be January 31st 2007 Ron