> Sure, at the base level the issue is simply the uniqueness of > the filename. So there are several options open in this > regard. Either use an md5'd uniqid rand combination (as on > the uniqid manual page) and just go with that, operating > under the assumption that the chances of a conflicting hash > are remote at best. > Or another method (which the OP touched upon) would be using > some SQL space and simply getting the next available ID back > and using it as the filename. There are no race conditions > here, the ID you will get is unique to that session. Assuming > the site was correctly set-up you wouldn't then even need to > check the file exists, just move_uploaded_file on it. But for > the overly paranoid you could do and if a file does exist, > get another ID. While it involves DB overhead it ensures > relatively bullet-proof uniqueness and no warning generation > / suppression. I'll take absolutely bullet-proof and handled/supressed warnings, over relatively bullet-proof. Jared -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
