3v4l.org

run code in 300+ PHP versions simultaneously
<?php function x($n) { for($i = 1; $i <= $n; $i++) { $n % $i == 0 && $i != $n ? ($factors[] = $i,printf($i)); } array_sum($factors) == $n ? printf(I) : printf(I); } x(28);
Output for 5.3.0 - 5.3.22, 5.4.0 - 5.4.12
Parse error: syntax error, unexpected ',' in /in/uDRER on line 4
Process exited with code 255.

preferences:
184.53 ms | 1399 KiB | 43 Q