I don't know what it's called:

but I would like a Script that can do THIS...

I would like my users to be able to submit THEIR OWN html codes to my own website, and have it be automatically categorized.

I would then like MY OWN Custom HTML to be inserted at the end of their unique submission.

THEN, I would like a picture of the code they submitted to be AUTOMATICALLY GENERATED, and submitted to the self-same category at Specific Dimensions


lol

I have NO IDEA what such a code as this would be called: and would appreciate any Real guidance on the matter

If you learn how to make your own captcha, you could probably use the same technique to generate a picture of the code. To have the code be automatically categorized, I'd suggest offering tags so that the person writing the code can categorize it for you. Everything else is fairly standard PHP, but I don't know of any script that does exactly what you want.

Do you know of anything already Out There that might do an inkling of what's here described?

I'm new, so i'm looking for something to follow: imitate, chop, and paste together (Of Course, to my desired specifications, so the above parameters are met)