search for: n123

I am furiously trying to find what I am looking for in Pickaxe book and not finding it. I''m getting some values back from a posted form and I need to get the ''id'' number off the backend. The ''String'' will always come back to me as... Some_name\r\n123 where 123 is actually the id number which I need to execute the find. The reason they are coming back this way is from a composite ''text_auto_complete_for'' methodology which is allowing users to pick by name and I want the associated id column for an easy find. But I can'...