no not necessary, with the dir() method you can find images (and open
them/display them/delete them), but mostly I keep the filenames in a
database because I often like to have some administration with my
images; like the owner, the gallery it should be displayed in, a
discription of the image, location of the thumbnail, a one to many
relation with a users comments table. In that case it is just easier to
keep the filenames in the database. As long as you add the images when
uploaded, and unlink() them when removed from the database, there
shouldn't be any problem.

john.postlethwait@gmail.com wrote:
> Why do you need the images in a database if you are already reading
> them from a folder? It is kind of redundant... Unless I am missing
> something.
>