CiviCRM Community Forums (archive)

Yep, me again, sorry for making a mess of these boards, but here it goes:

I have the following coming back from an API call:
{"is_error":0,"version":3,"count":1,"id":2,"values":{"2":{"id":"2","membership_id":"2","contact_id":"49346","membership_contact_id":"49346","membership_type_id":"2","join_date":"2011-10-03","start_date":"2011-10-03","membership_start_date":"2011-10-03","end_date":"2012-11-02","membership_end_date":"2012-11-02","status_id":"1","owner_membership_id":"1","is_test":"0","member_is_test":"0","is_pay_later":"0","member_is_pay_later":"0","membership_name":"Corporate","relationship_name":"Employee of","custom_6":"2","custom_6_2":"2","api_membership_get":{"is_error":0,"version":3,"count":1,"id":1,"values":[{"id":"1","contact_id":"49734","membership_type_id":"2","join_date":"2011-10-03","start_date":"2011-10-03","end_date":"2012-11-02","status_id":"1","is_test":"0","is_pay_later":"0","membership_name":"Corporate","relationship_name":"Employee of","custom_6":"2","custom_6_1":"2","related_contact_id":"49346"}]}}}}

I've made a custom field group + a single read only field for every membership type I'm working with.
The value holds the number of people per membership that can attend events at a "members only" price.

My current problem is that I can't seem to think of a way to dynamically map the key names (custom_X) to membership type IDs (or any other value for that matter). I got lucky with a few where membership_type_id $N matched custom_$N, but I just ran a few tests that proved that will not work...