if i have a webpage with the ability for hundreds of people to login and each upload their own specified document,pdf etc. then be able to see what they uploaded on their profile. how will or can this be done? if the files are uploaded to a directory how can i tell php to know which file belongs to which person by just renaming a file? what if files colide ?
the other thing i was thinking of having these files sent to mysql database and if i did do that what are the chances of the database failing?