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<?php mb_substitute_character(ord('?')); var_dump(mb_convert_encoding("\xDF\xC0", 'UTF-8', 'UTF-8')); var_dump(mb_convert_encoding("\xEF\xBF\xC0", 'UTF-8', 'UTF-8')); var_dump(mb_convert_encoding("\xF4\x8F\xBF\xC0", 'UTF-8', 'UTF-8'));
Output for git.master, git.master_jit, rfc.property-hooks
string(2) "??" string(2) "??" string(2) "??"

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