display data matching two inputs

[poleposters]

Hi all,

 

I'm new to php and this has me stumped.

 

I'm building a business directory and want my users to be able to enter their zip code or suburb into a text input and then select a category to retrieve rows from my database that match both the zip/suburb and the category.

 

I know how to create a submit button for the zip/suburb and the list of category IDs but I want to be able to do it with the one click.

 

ie the category link contains infromation for both the category ID and the submit for the zip/suburb.

 

Any help is greatly appreciated.