1: 2
2: 4
3: 6
4: 8
5: 10
6: 12
7: 14
8: 16
9: 18
10: 20
array(17) { [0]=> int(2) [1]=> int(4) [2]=> int(6) [3]=> int(8) [4]=> int(10) [5]=> int(12) [6]=> int(14) [7]=> int(16) [8]=> int(18) [9]=> int(20) [10]=> int(22) [11]=> int(24) [12]=> int(26) [13]=> int(28) [14]=> int(30) [15]=> int(32) [16]=> int(34) } hola