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<?php var_dump( $conv = mb_convert_encoding( $bin = hex2bin("febb90"), "UTF-8", "UHC" ), mb_check_encoding($bin, "UHC"), bin2hex(mb_convert_encoding($conv, "UHC", "UTF-8")) );
Output for git.master, git.master_jit, rfc.property-hooks
string(4) "?퍙" bool(false) string(6) "3fbb90"

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