By Collection

array(3) { [0]=> string(5) "89511" [1]=> string(5) "50778" [2]=> string(5) "50779" } array(3) { [89511]=> string(6) "MEDIUM" [50778]=> string(5) "LARGE" [50779]=> string(5) "SMALL" } array(3) { [50779]=> string(5) "SMALL" [89511]=> string(6) "MEDIUM" [50778]=> string(5) "LARGE" }

array(2) { [0]=> string(5) "10139" [1]=> string(5) "10138" } array(2) { [10139]=> string(6) "170 CM" [10138]=> string(6) "140 CM" } array(2) { [10138]=> string(6) "140 CM" [10139]=> string(6) "170 CM" }