3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function fib($n, $all=0){ f[0] = 1; f[1] = 1; for($i = 2; $i<= $n; $i++) f[$i] = f[$i-1]+f[$i-2]; if($all) return $f; return $f[$n]; } print fib(5); var_dump(fib(5, 1));
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.4.32
Parse error: syntax error, unexpected '[' in /in/9VrmE 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/9VrmE on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/9VrmE on line 4
Process exited with code 255.