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<?php $str = '東舘町'; var_dump(mb_detect_encoding($str, ['UTF-8', 'SJIS-WIN'])); var_dump(mb_detect_encoding($str, ['UTF-8', 'SJIS-WIN'], true)); var_dump(mb_detect_encoding($str, ['UTF-8', 'SJIS-WIN'], false));
Output for rfc.property-hooks, git.master, git.master_jit
string(8) "SJIS-win" string(8) "SJIS-win" string(8) "SJIS-win"

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