3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?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 7.0.0 - 7.1.0
Fatal error: Uncaught Error: Call to undefined function z() in /in/8kioY:5 Stack trace: #0 /in/8kioY(10): x(28) #1 {main} thrown in /in/8kioY on line 5
Process exited with code 255.
Output for 5.0.0 - 5.6.28, hhvm-3.10.0 - 3.12.0
Fatal error: Call to undefined function z() in /in/8kioY on line 5
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: z() in /in/8kioY on line 5
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: z() in /in/8kioY on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: z() in /in/8kioY on line 5