README

A comprehensive Laravel package that provides Google Translate functionality with support for both API v2 and v3, plus automated language file translation capabilities.

Features

Google Translate API Integration: Support for both v2 (API key) and v3 (service account) authentication
Language File Translation: Automatically translate Laravel language files using translate:lang command
Facade Support: Easy-to-use Laravel facade for translation operations
Batch Translation: Translate multiple texts to multiple target languages
Overwrite Protection: Preserve existing translations while adding new ones
Nested Array Support: Handle complex Laravel language file structures

Requirements

Laravel v11
PHP ^8.4

Installation

You can install the package via composer:

composer require fanswoo/laravel-google-translate

After that run the vendor:publish command:

php artisan vendor:publish --provider=FF\\GoogleTranslate\\GoogleTranslateProvider --tag=config

This will publish config from fanswoo/laravel-google-translate

Configuration

// config/services.php
[
    'google_translate_v2' => [
        'api_key' => env('GOOGLE_TRANSLATE_API_KEY'),
    ],
    'google_translate_v3' => [
        'project_id' => env('GOOGLE_TRANSLATE_PROJECT_ID'),
        'service_account_credentials_path' => env('GOOGLE_TRANSLATE_SERVICE_ACCOUNT_CREDENTIALS_PATH'),
    ],
],

// config/google-translate.php
return [
    // SSL verification for cURL requests
    'ssl_verify_peer' => true,
    
    // Google Cloud Version, can be 'v2' or 'v3'
    'api_version' => 'v2'
];

Usage

Basic Translation

use FF\GoogleTranslate\Facade\Translate;

// Single text translation
$text = Translate::get('hello world', 'zh_TW');

// Multiple texts to multiple languages
$translations = Translate::multiple(['hello', 'world'], ['zh_TW', 'ja_JP']);

Language File Translation Command

Automatically translate all your Laravel language files:

# Translate from English to Traditional Chinese and Japanese
php artisan translate:lang en zh_TW ja_JP

# Overwrite existing translations
php artisan translate:lang en zh_TW --overwrite

# Use custom language directory path
php artisan translate:lang en fr_FR --path=/custom/lang/path

Command Options:

source: Source locale (e.g., en)
targets: One or more target locales (e.g., zh_TW ja_JP fr_FR)
--overwrite: Overwrite existing translations (default: false)
--path: Custom path to language directory (default: Laravel's lang directory)

Programmatic Language File Translation

use FF\GoogleTranslate\LocaleTranslation\LocaleTranslation;

$localeTranslation = new LocaleTranslation();

// Translate from 'en' to multiple target locales
$results = $localeTranslation->translate('en', ['zh_TW', 'ja_JP'], false);

// With custom path and overwrite enabled
$results = $localeTranslation->translate('en', ['fr_FR'], true);

API Version Configuration

Google Translate API v2 (Default)

Simple API key authentication
Faster setup
Suitable for basic translation needs

Google Translate API v3

Service account authentication
More secure and feature-rich
Required for batch operations via multiple() method

The package automatically uses v3 for the multiple() method regardless of the configured version.

Testing

Run the test suite:

./vendor/bin/phpunit

The package includes comprehensive tests for:

Basic translation functionality
Language file scanning and translation
Command structure validation
Error handling and edge cases

Example Language File Structure

The package handles Laravel's standard language file structure:

// lang/en/messages.php
return [
    'welcome' => 'Welcome to our application',
    'goodbye' => 'Goodbye!',
    'auth' => [
        'failed' => 'These credentials do not match our records.',
        'password' => 'The provided password is incorrect.',
    ],
];

After running php artisan translate:lang en zh_TW, you'll get:

// lang/zh_TW/messages.php
return [
    'welcome' => '歡迎使用我們的應用程式',
    'goodbye' => '再見！',
    'auth' => [
        'failed' => '這些憑據與我們的記錄不符。',
        'password' => '提供的密碼不正確。',
    ],
];

License

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

fanswoo / laravel-google-translate

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