3v4l.org

run code in 300+ PHP versions simultaneously
<?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 = $arr[0]; for($i=0,$j=$n;$i<$n-1;$i++,$j++){ $tmp1=$arr[$j]; printIt($arr); echo("\n"); $arr[$i]=$tmp0; $tmp0=$arr[$i+1]; $arr[$i]=$tmp1; } printIt($arr); function printIt($arr){ for($i=0;$i<count($arr);$i++){ echo($arr[$i]." "); } } ?>
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
1 2 3 4 5 6 7 8 9 10 a b c d e f g h i j a 2 3 4 5 6 7 8 9 10 a b c d e f g h i j a b 3 4 5 6 7 8 9 10 a b c d e f g h i j a b c 4 5 6 7 8 9 10 a b c d e f g h i j a b c d 5 6 7 8 9 10 a b c d e f g h i j a b c d e 6 7 8 9 10 a b c d e f g h i j a b c d e f 7 8 9 10 a b c d e f g h i j a b c d e f g 8 9 10 a b c d e f g h i j a b c d e f g h 9 10 a b c d e f g h i j a b c d e f g h i 10 a b c d e f g h i j
preferences:
240.63 ms | 407 KiB | 313 Q