sanmai/japanese-numerals

Library to convert Japanese numeral to their Western variants (AKA Hindu-Arabic numerals)

, _(*1)

JapaneseNumeral

Library to convert Japanese numeral to their Western variants (AKA Hindu-Arabic numerals), _(*2)

Installation is simple:, _(*3)

composer require sanmai/japanese-numerals

Usage

To convert a number from Hindu-Arabic numerals to Japanese numerals, use:, _(*4)

$japanese = \JapaneseNumerals\JapaneseNumerals::fromArabicToJapanese(123);
var_dump($japanese);

Should output:, _(*5)

string(12) "百二十三"

To convert a string of Japanese numerals to Hindu-Arabic numerals, use:, _(*6)

$arabic = \JapaneseNumerals\JapaneseNumerals::fromJapaneseToArabic('二千二十五');
var_dump($arabic);

Should output:, _(*7)

string(4) "2025"

Known bugs

This library isn't bug-free. Most notably it fails to interpret 九百八十三万六千七百三 as 9836703 and 二十億三千六百五十二万千八百一 as 2036521801, examples given in the section on large numbers in the Wikipedia article., _(*8)

Acknowledgements

Special thanks go to Navarr Barnier (@navarr) for the initial implementation of the algorithm., _(*9)