I have this form which allows you to search for post in a custom post type. In order to find a matching post, all three meta fields must match otherwise the post doesn't belong in the result set.
Please take a look at the code I'm using, I can't find the problem with it. I implemented one that's very close to this one but using Taxonomies and I thought using custom fields would be easier but it turns out it's not.
Thanks in advance.