Using cookies to store/get user preferences

I'm an experienced programmer with several languages (COBOL, REXX, Java, Javascript, etc.) under my belt over many years but I know very little about PHP. I dabbled in it a bit a year or two back and got it to do what I wanted to do but I'm not sure how to do what I currently need.
A bit of context: I have designed a website where the user can choose between various page styles; each style invokes different CSS to give them a different visual experience of the site. They can select the style…
Using cookies to store/get user preferences

See original post by HenryCan