Chhankitek for Laravel

A PHP package to convert dates to Lunar (Chhankitek) format — works with or without Laravel. Learn more about Khmer calendar.

---

🇰🇭 Stand with Cambodia • កម្ពុជា

🕊️ Cambodia Needs Peace 🕊️

We stand in solidarity with our brave soldiers defending Cambodia's sovereignty and territorial integrity. Our hearts are with those protecting our homeland during these challenging times. We call upon the international community to support peaceful resolution and respect for Cambodia's borders.

🙏 កម្ពុជាត្រូវការសន្តិភាព • Together we stand for peace and sovereignty

---

Documentation

For detailed documentation, please visit https://chhankitek.netlify.app

Installation

You can install the package via composer:

composer require asorasoft/chhankitek

Usage

// In your Laravel controller, use this trait
use HasChhankitek;

// Convert a date to lunar format
$toLunarDate = $this->chhankitek(Carbon\CarbonImmutable::now()->setTimezone('Asia/Phnom_Penh'));
$toLunarDate->toString(); // ថ្ងៃច័ន្ទ ៤ រោច ខែបឋមាសាឍ ឆ្នាំឆ្លូវ ត្រីស័ក ពុទ្ធសករាជ ២៥៦៥

Timezone note: ->setTimezone('Asia/Phnom_Penh') ensures the correct Cambodian date is used when your server runs in a different timezone (e.g. UTC). Near midnight UTC, the calendar date differs from Cambodia's. You can omit it if app.timezone in config/app.php is already set to Asia/Phnom_Penh.

Available Methods

// In your Laravel controller, use this trait
use HasChhankitek;

$toLunarDate = $this->chhankitek(Carbon\CarbonImmutable::now()->setTimezone('Asia/Phnom_Penh')); // see timezone note above

// Get specific lunar date components
$toLunarDate->getDayOfWeek(); // អាទិត្យ, ច័ន្ទ...
$toLunarDate->getLunarDay(); // ១កើត, ២កើត...
$toLunarDate->getLunarMonth(); // ចេត្រ...
$toLunarDate->getLunarZodiac(); // ជូត, ឆ្លូវ...
$toLunarDate->getLunarEra(); // ត្រីស័ក...
$toLunarDate->getLunarYear(); // ២៥៦៥, ២៥៦៦..

Alternatively, you can use the toLunarDate helper function:

toLunarDate(Carbon\CarbonImmutable::now()->setTimezone('Asia/Phnom_Penh')); // ថ្ងៃច័ន្ទ ៤ រោច ខែបឋមាសាឍ ឆ្នាំឆ្លូវ ត្រីស័ក ពុទ្ធសករាជ ២៥៦៥

Pure PHP Usage (without Laravel)

The package works in any PHP project — Laravel is not required. The only runtime dependency is nesbot/carbon.

composer require asorasoft/chhankitek

Instantiate Chhankitek directly and read the lunar date from the formatKhmerDate property:

require 'vendor/autoload.php';

use Asorasoft\Chhankitek\Chhankitek;
use Carbon\CarbonImmutable;

$target = CarbonImmutable::now()->setTimezone('Asia/Phnom_Penh');

$toLunarDate = (new Chhankitek($target))->formatKhmerDate;

$toLunarDate->toString();      // ថ្ងៃច័ន្ទ ៤ រោច ខែបឋមាសាឍ ឆ្នាំឆ្លូវ ត្រីស័ក ពុទ្ធសករាជ ២៥៦៥
$toLunarDate->getLunarMonth(); // ចេត្រ...
$toLunarDate->getLunarYear();  // ២៥៦៥...

The toLunarDate() helper is also available outside Laravel:

toLunarDate(CarbonImmutable::now()->setTimezone('Asia/Phnom_Penh'));

Khmer Numerals

Convert Arabic numerals to their Khmer representation with the HasKhmerNumberConversion trait:

use Asorasoft\Chhankitek\Traits\HasKhmerNumberConversion;

class SomeController
{
    use HasKhmerNumberConversion;

    public function index()
    {
        $this->convertToKhmerNumber(2569); // ២៥៦៩
        $this->convertToKhmerNumber('2025-05-11'); // ២០២៥-០៥-១១
    }
}

Caching

The package caches converted dates for one year (365 days) to minimize computational overhead for frequently accessed dates. The cache is swappable via the CacheRepository interface, so it works the same whether or not you use Laravel.

Default behavior

• Inside Laravel — automatically uses Laravel's cache system (LaravelCache), so it respects whatever cache driver your application is configured with. No setup required.
• Pure PHP — falls back to an in-memory cache (ArrayCache) that de-duplicates lookups within a single request or script run.

Providing your own cache

Pass any implementation of Asorasoft\Chhankitek\Cache\CacheRepository as the second constructor argument:

use Asorasoft\Chhankitek\Cache\ArrayCache;
use Asorasoft\Chhankitek\Cache\CacheRepository;
use Asorasoft\Chhankitek\Chhankitek;
use Carbon\CarbonImmutable;

// Use the bundled in-memory cache explicitly
$toLunarDate = (new Chhankitek($target, new ArrayCache))->formatKhmerDate;

// Or wire up your own (e.g. a PSR-16 adapter)
final class Psr16Cache implements CacheRepository
{
    public function __construct(private \Psr\SimpleCache\CacheInterface $cache) {}

    public function remember(string $key, int $ttl, callable $callback): mixed
    {
        if ($this->cache->has($key)) {
            return $this->cache->get($key);
        }

        $value = $callback();
        $this->cache->set($key, $value, $ttl);

        return $value;
    }
}

$toLunarDate = (new Chhankitek($target, new Psr16Cache($yourCache)))->formatKhmerDate;

Testing

composer test

The test suite is split into two groups — run them individually if needed:

vendor/bin/pest --testsuite=PurePhp  # framework-free tests (no Laravel)
vendor/bin/pest --testsuite=Laravel  # Laravel integration tests

Changelog

Please see CHANGELOG for more information about recent changes.

Contributing

Please see CONTRIBUTING for details.

Security

If you discover any security related issues, please email mabhelitc@gmail.com instead of using the issue tracker.

Support

If you like this package and want to support me, you can buy me a coffee ☕

Credits

• Mab Hel
• All Contributors

License

The MIT License (MIT). Please see License File for more information.

Authors and Acknowledgment

This library would not exist without the hard work of these people:

1. Based on the algorithm by Mr. Phylypo Tum from Khmer Calendar
2. Ported from momentkh by ThyrithSor into Java
3. Khmer New Year Time Calculation
4. Ported from MetheaX/khmer-chhankitek-calendar by MetheaX into a Laravel Package