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ActiveLibrary[Localization & i18n](/categories/localization)

danil-kashin/localization
=========================

A PHP localization package for managing translations

v1.0.0(4mo ago)061↓95%BSD-3-ClausePHPPHP >=8.5

Since Apr 1Pushed 4mo agoCompare

[ Source](https://github.com/KashinDanil/Localization)[ Packagist](https://packagist.org/packages/danil-kashin/localization)[ RSS](/packages/danil-kashin-localization/feed)WikiDiscussions main Synced 1w ago

READMEChangelogDependencies (1)Versions (2)Used By (0)

Localization
============

[](#localization)

A lightweight PHP localization package for managing translations. Instantiate a `Translator` with a language and a path to your JSON translation files, and wire it up however your application requires.

Requirements
------------

[](#requirements)

- PHP 8.5+

Installation
------------

[](#installation)

```
composer require danil-kashin/localization
```

Quick start
-----------

[](#quick-start)

Create a JSON translation file for each language you support:

```
translations/
    ru.json
    de.json

```

```
{
    "Hello": "Привет",
    "Goodbye": "До свидания"
}
```

Instantiate a `Translator` and call `translate()`:

```
use DanilKashin\Localization\Translator;
use DanilKashin\Localization\Language;

$translator = new Translator(
    language: 'ru',
    translationsPath: __DIR__ . '/translations',
);

echo $translator->translate('Hello');   // Привет
echo $translator->translate('Goodbye'); // До свидания
echo $translator->translate('Missing'); // Missing  (falls back to original text)
```

Translations are loaded lazily on the first call to `translate()`.

Languages
---------

[](#languages)

The `Language` class contains constants for all 184 ISO 639-1 language codes:

```
use DanilKashin\Localization\Language;

new Translator(Language::RU, __DIR__ . '/translations');
new Translator(Language::DE, __DIR__ . '/translations');
new Translator(Language::ZH, __DIR__ . '/translations');
```

The default language is `Language::EN`. If you need codes beyond ISO 639-1, extend the class:

```
class MyLanguage extends Language
{
    const string ZH_TW = 'zh-TW'; // Traditional Chinese
}
```

### Normalizing language codes

[](#normalizing-language-codes)

`Language::fromCode()` normalizes arbitrary codes (e.g. from `Accept-Language` headers or Telegram's `language_code`) to a 2-character lowercase string:

```
Language::fromCode('en-US'); // 'en'
Language::fromCode('RU');    // 'ru'
```

Default language
----------------

[](#default-language)

The default language is `Language::EN` (`'en'`). Translating in the default language always returns the original text unchanged — no file is loaded and no missing-key tracking occurs.

You can change the default:

```
$translator = new Translator(
    language: 'de',
    translationsPath: __DIR__ . '/translations',
    defaultLanguage: 'de',
);

$translator->isDefaultLanguage(); // true
$translator->translate('Hello');  // 'Hello' (no translation attempted)
```

Tracking missing translations
-----------------------------

[](#tracking-missing-translations)

Pass a `MissingTranslationHandlerInterface` to be notified whenever a key has no translation. The built-in `JsonFileMissingTranslationHandler` appends missing keys to a JSON file:

```
use DanilKashin\Localization\JsonFileMissingTranslationHandler;

$handler = new JsonFileMissingTranslationHandler(__DIR__ . '/missing.json');

$translator = new Translator(
    language: 'ru',
    translationsPath: __DIR__ . '/translations',
    missingHandler: $handler,
);

$translator->translate('An untranslated string');
// missing.json → { "ru": ["An untranslated string"] }
```

The file is created if it does not exist. Duplicate keys are never written twice.

### Custom handler

[](#custom-handler)

Implement the interface to handle missing keys your own way (logging, alerting, etc.):

```
use DanilKashin\Localization\MissingTranslationHandlerInterface;

class LoggingHandler implements MissingTranslationHandlerInterface
{
    public function handle(string $language, string $text): void
    {
        // log or alert
    }
}
```

Dependency injection
--------------------

[](#dependency-injection)

`Translator` implements `TranslatorInterface`, so you can type-hint against the interface in your own code:

```
use DanilKashin\Localization\TranslatorInterface;

class MyService
{
    public function __construct(private readonly TranslatorInterface $translator) {}
}
```

License
-------

[](#license)

BSD-3-Clause. See [LICENSE](LICENSE).

###  Health Score

39

—

LowBetter than 84% of packages

Maintenance75

Regular maintenance activity

Popularity11

Limited adoption so far

Community6

Small or concentrated contributor base

Maturity52

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

Unknown

Total

1

Last Release

136d ago

### Community

Maintainers

![](https://www.gravatar.com/avatar/808cc658e54eb99caa9573723ab97993e9fcd90d2b6cd0940a1ba7eb8950f8cf?d=identicon)[KashinDanil](/maintainers/KashinDanil)

---

Top Contributors

[![KashinDanil](https://avatars.githubusercontent.com/u/51259240?v=4)](https://github.com/KashinDanil "KashinDanil (1 commits)")

###  Code Quality

TestsPHPUnit

### Embed Badge

![Health badge](/badges/danil-kashin-localization/health.svg)

```
[![Health](https://phpackages.com/badges/danil-kashin-localization/health.svg)](https://phpackages.com/packages/danil-kashin-localization)
```

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