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<?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 git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught TypeError: array_sum(): Argument #1 ($array) must be of type array, null given in /in/RDTfu:6 Stack trace: #0 /in/RDTfu(6): array_sum(NULL) #1 /in/RDTfu(8): x(28) #2 {main} thrown in /in/RDTfu on line 6
Process exited with code 255.

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