Giving uploaded picture a new name

[pugs421]

*newbie*
The script I'm trying to customize has a textbox that allows you to type in the title that the uploaded picture will be named. I removed that and tried to set it up where the picture is assigned the name of the user that uploaded it, and image name is stored in the database. I realized the this is not a good method because some people put spaces in thier username and their picture isn't displayed in that case.

*How do I get php to generate a unique name for the newly uploaded image?*

(a general idea of where the code would be placed would be very helpful as well) Thanks

[liquedus]

well if you have some other field in your database that is unique then you could use that...

[Redcircle]

How about the user_id??

[pugs421]

Repeat

*newbie*

Understood, thanks ;)