3v4l.org

run code in 300+ PHP versions simultaneously
<?php $z="printf" function x($n) { for($i = 1; $i <= $n; $i++) { $n % $i == 0 && $i != $n ? $f[]=$i & $z('$i '): 0; } array_sum($f) == $n ? $z('P') : $z('I'); } x(28);
Output for 5.4.0 - 5.4.12
Parse error: syntax error, unexpected 'function' (T_FUNCTION) in a3RQh on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.22
Parse error: syntax error, unexpected T_FUNCTION in a3RQh on line 3
Process exited with code 255.
preferences:
174.32 ms | 1395 KiB | 43 Q