<?php mb_substitute_character("none"); $input = 'あaいb'; $bytes_length = 10; $encoding = "ISO-2022-JP"; $converted_str = mb_convert_encoding($input, $encoding, mb_internal_encoding()); var_dump(bin2hex($converted_str)); $cut_str = mb_strcut($converted_str, 0, $bytes_length, $encoding); var_dump(bin2hex($cut_str)); $reconverted_str = mb_convert_encoding($cut_str, mb_internal_encoding(), $encoding); var_dump($reconverted_str);
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