Laravel internationalization and localization: achieving multi-language and regional adaptation

Laravel Internationalization and Localization: Implementing Multi-language and Regional Adaptation

Overview:
When developing an application for global users, implement multiple Language and region adaptation are very important. Laravel provides many features to help developers easily implement internationalization and localization.

1. Configure language and region information:
   In Laravel, you first need to configure the supported language and region information. In the config/app.php configuration file, find the 'app.locale' and 'app.fallback_locale' options to set the application's default language and alternative language respectively.

Sample code:

// config/app.php

return [
    // ...
    'locale' => 'en',
    'fallback_locale' => 'en',
    // ...
];

In this example, we set the default language to English and set the alternative language to English as well. If no translation is found for a specific language, the application will use an alternative language.

2. Create language files:
   Next, we need to create language files to store the translated text for each language. Create a folder named after the language abbreviation in the resources/lang directory, and then create a file with the extension php in the folder.

Sample code:

// resources/lang/en/messages.php

return [
    'welcome' => 'Welcome to our application',
    'hello' => 'Hello :name',
    // ...
];

In this example, we define two translation texts in the messages.php file, namely 'welcome' and 'hello'. You can add more text as needed.

3. Use translated text:
   In view files, controllers or anywhere where translated text needs to be used, we can use the __() function provided by Laravel. Get the translated text.

Sample code:

// 在视图文件中
<h1 id="messages-welcome">{{ __('messages.welcome') }}</h1>

// 在控制器中
public function index()
{
    $welcome = __('messages.welcome');
    // ...
}

In this example, we use __('messages.welcome') to get the 'welcome' translation text and in displayed in the view file.

4. Set different regions:
   In addition to supporting different languages, Laravel also supports adaptation according to regions. Under the language folder, you can create a subfolder for each language with the region as the suffix, and create a file with the php extension in the subfolder.

Sample code:

// resources/lang/en/GB/messages.php

return [
    'welcome' => 'Welcome to our application in UK',
    // ...
];

// resources/lang/en/US/messages.php

return [
    'welcome' => 'Welcome to our application in US',
    // ...
];

In this example, we created language files for two regions in the en folder, namely GB and US. Translated texts for different regions are stored separately.

5. Adapt according to region and language:
   In the code, you can use the app()->getLocale() function to obtain the current language and region information, And load the corresponding language file based on this information.

Sample code:

public function index()
{
    $locale = app()->getLocale();

    if ($locale === 'en') {
        $welcome = __('messages.welcome');
    } else {
        $welcome = __('messages.welcome', [], $locale);
    }

    // ...
}

In this example, we first get the current language and region information, and select different translation texts according to different languages. If it is English, just use __('messages.welcome') to get the text; if it is other languages, you can get the corresponding translation by passing the language parameter $locale.

Summary:
Through Laravel's multi-language and regional adaptation capabilities, developers can easily implement global applications. Configuring language and region information, creating language files, using translation functions, and adapting according to region and language are all very simple operations. This allows applications to provide a better user experience based on the user's language and region, and be more easily accepted by users around the world.

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