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<?php $result = sha256('hello'); $mutated = mutate($result); $unmutated = unmutate($mutated); echo "hello in sha256 is $result. Mutated it becomes $mutated, and when unmutated it is returned to $unmutated"; function mutate($hash) { return str_replace(['a', 'b', 'c', 'd', 'e', 'f'], ['f', 'e', 'd', 'c', 'b', 'a'], $hash); } function unmutate($hash) { return str_replace(['f', 'e', 'd', 'c', 'b', 'a'], ['a', 'b', 'c', 'd', 'e', 'f'], $hash); }
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Error: Call to undefined function sha256() in /in/bKCBc:3 Stack trace: #0 {main} thrown in /in/bKCBc on line 3
Process exited with code 255.

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