array(1) { [0]=> string(10) "Kopenhagen" } array(2) { [0]=> string(10) "Kopenhagen" [1]=> string(6) "Berlin" } array(2) { [0]=> string(10) "Kopenhagen" [1]=> string(6) "Berlin" } array(3) { [0]=> string(10) "Kopenhagen" [1]=> string(6) "Berlin" [2]=> string(7) "Tallinn" } array(4) { [0]=> string(10) "Kopenhagen" [1]=> string(6) "Berlin" [2]=> string(7) "Tallinn" [3]=> string(14) "St. Petersburg" } array(5) { [0]=> string(10) "Kopenhagen" [1]=> string(6) "Berlin" [2]=> string(7) "Tallinn" [3]=> string(14) "St. Petersburg" [4]=> string(8) "Helsinki" } array(6) { [0]=> string(10) "Kopenhagen" [1]=> string(6) "Berlin" [2]=> string(7) "Tallinn" [3]=> string(14) "St. Petersburg" [4]=> string(8) "Helsinki" [5]=> string(9) "Stockholm" } array(6) { [0]=> string(10) "Kopenhagen" [1]=> string(6) "Berlin" [2]=> string(7) "Tallinn" [3]=> string(14) "St. Petersburg" [4]=> string(8) "Helsinki" [5]=> string(9) "Stockholm" }