I'm using modrewrite to show different images using the same image url dependent on date. Using the following code.
RewriteRule ^pic.gif$ pic-%{TIME_MON}-%{TIME_DAY}.gif
then create files named by date like
pic-03-08.gif
pic-03-09.gif
pic-03-10.gif
This is working just fine, but now I'm wondering if I can alter this to show tomorrow's image? Sure, one clunky way would be to create another file set using different dates. and that may end up being easier than develop a set of rules for different months etc.