Is there an effeceint way to store a txt or html file into a table and update once every hour or half hour, the file is only a small document and is accessed by a URL.
Not sure where to start for the automated part.
grab the contents of the URL using [man]file_get_contents[/man] then stick it in the database. fire this script off every hour using cron (if you are using a *nix based server).
