<?php for ($x = 1; $x < 81; $x++) { echo "x = $x\n"; }
Standard input is empty
x = 1 x = 2 x = 3 x = 4 x = 5 x = 6 x = 7 x = 8 x = 9 x = 10 x = 11 x = 12 x = 13 x = 14 x = 15 x = 16 x = 17 x = 18 x = 19 x = 20 x = 21 x = 22 x = 23 x = 24 x = 25 x = 26 x = 27 x = 28 x = 29 x = 30 x = 31 x = 32 x = 33 x = 34 x = 35 x = 36 x = 37 x = 38 x = 39 x = 40 x = 41 x = 42 x = 43 x = 44 x = 45 x = 46 x = 47 x = 48 x = 49 x = 50 x = 51 x = 52 x = 53 x = 54 x = 55 x = 56 x = 57 x = 58 x = 59 x = 60 x = 61 x = 62 x = 63 x = 64 x = 65 x = 66 x = 67 x = 68 x = 69 x = 70 x = 71 x = 72 x = 73 x = 74 x = 75 x = 76 x = 77 x = 78 x = 79 x = 80