<?php foreach($length as $i) { }
Standard input is empty
array(5) {
[0]=>
array(3) {
[0]=>
int(0)
[1]=>
int(1)
[2]=>
int(2)
}
[1]=>
array(7) {
[0]=>
int(3)
[1]=>
int(4)
[2]=>
int(5)
[3]=>
int(6)
[4]=>
int(7)
[5]=>
int(8)
[6]=>
int(9)
}
[2]=>
array(2) {
[0]=>
int(10)
[1]=>
int(11)
}
[3]=>
array(12) {
[0]=>
int(12)
[1]=>
int(13)
[2]=>
int(14)
[3]=>
int(15)
[4]=>
int(16)
[5]=>
int(17)
[6]=>
int(18)
[7]=>
int(19)
[8]=>
int(20)
[9]=>
int(21)
[10]=>
int(22)
[11]=>
int(23)
}
[4]=>
array(6) {
[0]=>
int(24)
[1]=>
int(25)
[2]=>
int(26)
[3]=>
int(27)
[4]=>
int(28)
[5]=>
int(29)
}
}