string(2) "[]" array(4) { [0]=> array(3) { ["type"]=> string(5) "terms" ["key"]=> string(6) "region" ["value"]=> array(2) { [0]=> string(5) "South" [1]=> string(6) "Africa" } } [1]=> array(3) { ["type"]=> string(4) "term" ["key"]=> string(11) "bottle_size" ["value"]=> string(2) "3L" } [2]=> array(4) { ["type"]=> string(5) "range" ["key"]=> string(7) "vintage" ["from"]=> string(4) "1800" ["to"]=> string(4) "1949" } [3]=> array(3) { ["type"]=> string(5) "range" ["key"]=> string(8) "quantity" ["from"]=> int(1) } }