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sanmai/japanese-numerals
========================

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

v0.1.3(2y ago)214.6k—0%[1 issues](https://github.com/sanmai/JapaneseNumeral/issues)MITPHPPHP >=7.4

Since Nov 30Pushed 2y ago2 watchersCompare

[ Source](https://github.com/sanmai/JapaneseNumeral)[ Packagist](https://packagist.org/packages/sanmai/japanese-numerals)[ RSS](/packages/sanmai-japanese-numerals/feed)WikiDiscussions main Synced 1mo ago

READMEChangelog (4)Dependencies (3)Versions (5)Used By (0)

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JapaneseNumeral
===============

[](#japanesenumeral)

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

Installation is simple:

```
composer require sanmai/japanese-numerals

```

Usage
=====

[](#usage)

To convert a number from Hindu-Arabic numerals to Japanese numerals, use:

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

Should output:

```
string(12) "百二十三"

```

To convert a string of Japanese numerals to Hindu-Arabic numerals, use:

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

Should output:

```
string(4) "2025"

```

Known bugs
==========

[](#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](https://en.wikipedia.org/wiki/Japanese_numerals#Large_numbers).

Acknowledgements
================

[](#acknowledgements)

Special thanks go to Navarr Barnier (@navarr) for [the initial implementation of the algorithm](https://github.com/oftn-oswg/common/blob/master/number/japanese.php).

###  Health Score

29

—

LowBetter than 59% of packages

Maintenance10

Infrequent updates — may be unmaintained

Popularity28

Limited adoption so far

Community8

Small or concentrated contributor base

Maturity56

Maturing project, gaining track record

 Bus Factor1

Top contributor holds 100% of commits — single point of failure

How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window.

**Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores.

**Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement.

**Maturity (30%)** — Project age, version count, PHP version support, and release stability.

###  Release Activity

Cadence

Every ~756 days

Total

4

Last Release

821d ago

PHP version history (3 changes)v0.1.1PHP ^7.1

v0.1.2PHP >=5.6

v0.1.3PHP >=7.4

### Community

Maintainers

![](https://www.gravatar.com/avatar/edcb8dde95c71b1c97c3c91e57d3548795fa2014c657744fb878e2be3b5949fc?d=identicon)[sanmai](/maintainers/sanmai)

---

Top Contributors

[![sanmai](https://avatars.githubusercontent.com/u/139488?v=4)](https://github.com/sanmai "sanmai (21 commits)")

---

Tags

hindu-arabic-numeralsjapanese-numeralsphpphp-library

###  Code Quality

Code StylePHP CS Fixer

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