Change Filenames auto and Adding Infor to images

[sixthcrusifix]

I have a secition on my site where people upload images. I was wondering how I could automaticaly change their image's name to a variable, i'd have to be able to not allow them to overrwrite othe rpeoples files in case of a name conflict. I was thinking of using MySQL too.

Also, I wanted to add a bar at the bottom of the image that says in plain text some variable values and words.

Do I have to have a standard size to be able to ad a bar at teh bottom of the image?

[Evilsprouts]

This mite help for the footer of the image http://www.sitepoint.com/article/watermark-images-php

[sixthcrusifix]

oh okay I think that coudl help me. thanks.

[Evilsprouts]

Just something i found on google. No problem.