Hi there,
Yes I did. I managed to find out what the array is:
Array ( [0] => Array ( [relation] => OR [0] => Array ( [key] => city [value] => VALUE [compare] => LIKE ) [1] => Array ( [key] => city2 [value] => VALUE [compare] => LIKE ) ) )
VALUE being the value the frontend users submit when using the form
But as mentioned it now echoes all the entries in the database, and I don't know how to fix it :'-(