<?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) } }