3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $arr = array(1,2,3,4,5,6,7,8,9,10,'a','b','c','d','e','f','g','h','i','j'); $n=10; $tmp0 = $arr[0]; $tmp1 = $arr[$n]; for($i=0,$j=$n;$i<17;$i++,$j++){ echo($j."\n"); $arr[$i]=$tmp0; $tmp0=$arr[$i+1]; $arr[$i+1]=$arr[$j]; } printIt($arr); function printIt($arr){ for($i=0;$i<count($arr);$i++){ echo($arr[$i]." "); } } ?>
Output for 5.3.0 - 5.6.28, 7.0.0 - 7.1.0
10 11 12 13 14 15 16 17 18 19 20 Notice: Undefined offset: 20 in /in/ZgGRR on line 12 21 Notice: Undefined offset: 21 in /in/ZgGRR on line 12 22 Notice: Undefined offset: 22 in /in/ZgGRR on line 12 23 Notice: Undefined offset: 23 in /in/ZgGRR on line 12 24 Notice: Undefined offset: 24 in /in/ZgGRR on line 12 25 Notice: Undefined offset: 25 in /in/ZgGRR on line 12 26 Notice: Undefined offset: 26 in /in/ZgGRR on line 12 1 2 3 4 5 6 7 8 9 10 a b c d e f g i j
Output for hhvm-3.10.0 - 3.12.0
10 11 12 13 14 15 16 17 18 19 20 Notice: Undefined index: 20 in /in/ZgGRR on line 12 21 Notice: Undefined index: 21 in /in/ZgGRR on line 12 22 Notice: Undefined index: 22 in /in/ZgGRR on line 12 23 Notice: Undefined index: 23 in /in/ZgGRR on line 12 24 Notice: Undefined index: 24 in /in/ZgGRR on line 12 25 Notice: Undefined index: 25 in /in/ZgGRR on line 12 26 Notice: Undefined index: 26 in /in/ZgGRR on line 12 1 2 3 4 5 6 7 8 9 10 a b c d e f g i j
Output for 4.3.0 - 5.2.17
10 11 12 13 14 15 16 17 18 19 20 Notice: Undefined offset: 20 in /in/ZgGRR on line 12 21 Notice: Undefined offset: 21 in /in/ZgGRR on line 12 22 Notice: Undefined offset: 22 in /in/ZgGRR on line 12 23 Notice: Undefined offset: 23 in /in/ZgGRR on line 12 24 Notice: Undefined offset: 24 in /in/ZgGRR on line 12 25 Notice: Undefined offset: 25 in /in/ZgGRR on line 12 26 Notice: Undefined offset: 26 in /in/ZgGRR on line 12 1 2 3 4 5 6 7 8 9 10 a b c d e f g i j