newbie - about php, a forum and a showcase

Hi,

I've upgraded my webspace, so it can handle php4 now. I must provide a
forum for users. Do you know any good free source code for a web based
forum in php? More, I have 1 MySQL database - what is MySQL, and what
can I do with it other than with php?

Next, I want to provide a way for the user to enter a product link and
a product cathegory, and then there should be a site, where you can
sort all entered products and click on "detail view" for the product.

More, is it possible to let the user upload an image (checking for the
image's size to be smaller than 100kb) with the product description?
Can I resize images with php to match 100x100 pixels?

Sorry for this much questions, but I'm totally new to server side
programming.

Thank you,

-Gernot

Post here, don't email. If you feel you have to mail, revert my
forename from:
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________________________________________
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"Gernot Frisch" wrote
> Hi,
>
> I've upgraded my webspace, so it can handle php4 now. I must provide a
> forum for users. Do you know any good free source code for a web based
> forum in php?

Nice board is www.phpbb.com

>More, I have 1 MySQL database - what is MySQL, and what
> can I do with it other than with php?

www.mysql.com learn what Mysql is
www.php.net learn what php is

That's are basics, what is database, what is a programming language. Not the
right group to tell you the basics and concepts of databases and/or
programming language.

>
> Next, I want to provide a way for the user to enter a product link and
> a product cathegory, and then there should be a site, where you can
> sort all entered products and click on "detail view" for the product.
>
> More, is it possible to let the user upload an image (checking for the
> image's size to be smaller than 100kb) with the product description?
> Can I resize images with php to match 100x100 pixels?
>

Maybe you are looking for an free CMS like www.postnuke.com

Michael