3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $fib = [1,0]; for($i=0; $i<30; $i++) { $next = array_sum($fib); array_shift($fib); array_push($fib,$next); echo $next.", "; }
based on 8dhLl
Output for 5.4.0 - 7.2.0
1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, 1597, 2584, 4181, 6765, 10946, 17711, 28657, 46368, 75025, 121393, 196418, 317811, 514229, 832040,
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/RB6ml on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/RB6ml on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/RB6ml on line 4
Process exited with code 255.