3v4l.org

run code in 300+ PHP versions simultaneously
<?php function x($n){ for($i=1;$i<$n;$i++){ !$n%$i ? $f[]=$i:0; } echo array_sum($f)==$n?"P":"I"; } x(28); }
Output for 5.3.0 - 5.3.22, 5.4.0 - 5.4.12
Parse error: syntax error, unexpected '}' in 4dv9q on line 9
Process exited with code 255.
preferences:
169.02 ms | 1399 KiB | 43 Q