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<?php function x($n) { $z="printf"; for($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 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught Error: Call to undefined function z() in /in/TivsK:5 Stack trace: #0 /in/TivsK(10): x(28) #1 {main} thrown in /in/TivsK on line 5
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38
Fatal error: Call to undefined function z() in /in/TivsK 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/TivsK on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
Fatal error: Call to undefined function: z() in /in/TivsK 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/TivsK on line 5

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