Laravel localization in Thai ไทย

Locale codes

Set the base locale in config/app.php. For regional variants, Thai commonly uses: th_TH

// config/app.php
'locale' => 'th',
'fallback_locale' => 'en',

// Or switch at runtime
App::setLocale('th');

Plural rules: what Thai actually needs

CLDR defines 1 cardinal category for Thai. The sample numbers below were computed by ICU for this exact locale:

Laravel's trans_choice() maps numbers to 1 pipe-separated form for this locale:

// lang/th/messages.php
'items' => ':count'

// Usage
trans_choice('messages.items', $count, ['count' => $count]);

This language has no grammatical plural, so a single form covers every number.

Try any number live in the pluralization tester.

Localized dates with Carbon

Real output for Thai (th locale), generated by Carbon for March 21, 2026:

$date = now()->locale('th');

$date->translatedFormat('l, j F Y');
// "เสาร์, 21 มีนาคม 2026"

$date->isoFormat('LLLL');
// "Lันเสาร์ที่ 21 มีนาคม 2026 เวลา 14:30"

$date->isoFormat('L');
// "21/03/2026"

$date->subDays(3)->diffForHumans();
// "3 เดือนที่แล้ว"

What to watch out for in Thai

• No spaces between words (spaces separate phrases), so line breaking requires dictionary-based word segmentation.
• No plural, gender, or tense inflection; meaning comes from context and helper words.
• Polite particles (ครับ for male, ค่ะ for female speakers) set register in user-facing text.
• The Buddhist Era calendar (year + 543) is widely used in formal Thai dates.

Framework strings already translated

Laravel's own validation, auth and pagination strings are maintained in Thai by the open-source Laravel-Lang project (MIT). Install them, then manage your app's own strings live:

composer require laravel-lang/common --dev
php artisan lang:add th
php artisan lang:update