how to calculate the exceeds time.
$due_date=strtotime("July 5,2011,8:00 am");
$today=strtotime("July 5,2011,9:00 am");
example i borrow a book so the due date is = ($due_date), then i return the book at ($today) how can i caculate the munites exceed from $due_date to $today...the munites exceed is 60 munites. how can i write this on php script. thnx an advance.