dynamic css creation

alright... planning to create a personal site/page as soon as these impossible exams are over... and one of my insane ideas calls for this...

is it possible for a php program to create a css script? could the colors, etc be stored in a mysql database?

i'd like to have a site which has colors which change according to the season and time of day... also i guess it would be a good idea to cache the css script if i do have one created, just to save server cpu time.....

any ideas? thanks for any suggestions.

The answer is yes, as long as you know how to use PHP to create a text file. Alternatively you could embed the css directly within the HTML file. Yes also to storing values in a DB, if you really want to go that way. You are correct that cacheing the file will improve performance.