3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php for($o;$o<100;$o++){echo $o."\n";}
based on tT4l8
Output for 5.1.0 - 7.2.0
Notice: Undefined variable: o in /in/bQT1s on line 2 Notice: Undefined variable: o in /in/bQT1s on line 2 Notice: Undefined variable: o in /in/bQT1s on line 2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99
Output for 5.0.4 - 5.0.5
Notice: Undefined variable: o in /in/bQT1s on line 2 Notice: Undefined variable: o in /in/bQT1s on line 2 Notice: Undefined variable: o in /in/bQT1s on line 2 Notice: Undefined variable: o in /in/bQT1s on line 2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: o in /in/bQT1s on line 2 Notice: Undefined variable: o in /in/bQT1s on line 2 Notice: Undefined variable: o in /in/bQT1s on line 2 Notice: Undefined variable: o in /in/bQT1s on line 2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99