Function list

Hi, sorry for bother you, but I couldn't think in some other wy for asking. Is there a page with the functions "per PHP version"? If it is, I couldn't find it, if it's not, do you think it would be possible to add it to the site? I know, as far as I've checked, that every function has the PHP version it was introduced in, but it's hard to check one at the time when documenting and deciding the 'minimum requirements' for the site. -- Anyway, I hope I haven't being (to much of) a nuisance, Rafael PS What's the reason of "every message you send will be stored in public archives at multiple servers"?? I don't like to be in the spotlight