Query Form

What I'm trying to do is query a database (MySQL) for zip code matches. I can build a page that lists them as soon as I go to the page, and allows me to edit them and update them, which is great, but I have had no luck building a form where someone could enter in any given zip code and find info about it (i.e. what state and/or city its in). I have been poking around for even a tutorial but had no luck. Anyone by chance know of a good tutorial on this subject or some example code I could learn from? Thanks in advance for any help you might have to offer.

SELECT * FROM table WHERE zip_code = '{$_POST['zip']}'

that will find zip codes that match it exactly...

Excellent, thanks for that D1NGO =)

That code you gave me worked perfectly, thanks again for that. Another question though if you or anyone else has the time...

Could you also with php find near matches? I can't even begin to think how I'd go about that. For example, would you tell it to look for something like 9810* or even 981** or 98***? Now that would be pretty sweet. Anyone have any ideas/know how on that?

All help graciously excepted as always =)

and just enter starting digits, ie "98"