Web Caching

Hi! Any web browsers that establish a SSL connection with Apache. What I understand is that any webpages through SSL would not be cache after the web browser received it. But I noticed that only any webpage that use html "<form>" tag follow by the method like "Get" or "Post" would effectively not be cached. It can be shown by pressing the back or forward button on the web browser. But not on any webpage that doesn't have html "<form>" tag. Is there a way for PHP to take care of that problem? I realized that PHP is on the server side and the web browser is on the client side. So, it wouldn't work that way. Anyone know? Suggestion? Recommendation? Thanks, FletchSOD