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<?php function analyze(string $input): bool { $decoded = base64_decode($input); var_dump(bin2hex($decoded)); return base64_encode($decoded) === $input; } var_dump(analyze('PHP')); var_dump(analyze('PHP=')); var_dump(analyze('PHM='));
Output for git.master, git.master_jit, rfc.property-hooks
string(4) "3c73" bool(false) string(4) "3c73" bool(false) string(4) "3c73" bool(true)

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