Internationalization and localization in Laravel: meeting the needs of different languages ​​and regions

Internationalization and localization in Laravel: meeting the needs of different languages ​​and regions

In today's era of global interconnection, develop a multi-language and multi-region support Applications are becoming more and more important. As an open source PHP framework, Laravel provides rich internationalization and localization functions, allowing developers to easily adapt applications to the needs of different languages ​​and regions. This article will introduce how to use these functions in Laravel.

1. Configure the language file

First, we need to configure the language file. Laravel uses JSON format files as translation files. For each language, there is a corresponding JSON file. By default, these files are stored in the resources/lang directory. We can create subdirectories in different languages ​​under this directory as needed, such as en (English) and zh-CN (Simplified Chinese).

Next, we need to create a language file. In the subdirectory of the corresponding language, create a new JSON file, such as en.json. In this file, we can define different translation key-value pairs, for example:

{
"welcome": "Welcome to our website",
"contact_us": "Contact Us"
}

2. Use translation

Once the language file is configured, we can use the corresponding translation in the application. For view files, you can use the @lang directive provided by Laravel for translation. For example:

<meta charset="UTF-8">
<title>@lang('welcome')</title>

<h1 id="lang-welcome">@lang('welcome')</h1>
<p>@lang('contact_us')</p>

In the above example, we use the @lang directive to translate "welcome" and "contact_us" into the corresponding language text. Based on the user's language settings, Laravel automatically selects the correct translated text for rendering.

If you want to translate in the controller or model, you can use the trans method provided by Laravel. For example:

public function index()
{
$welcome = trans('welcome');
$contactUs = trans('contact_us');
return view(' welcome', compact('welcome', 'contactUs'));
}

In the above code, we assign the translation text to variables through the trans method, and then pass these variables to the view.

3. Dynamic language switching

In addition to static language translation, Laravel also provides the function of dynamic language switching. This means users can dynamically select different languages ​​within the application. To achieve this functionality, we need to set the locale of the application.

In the config/app.php file, you can find the locales array. In the array, add the supported language codes and corresponding names, for example:

'locales' => [
'en' => 'English',
'zh-CN ' => 'Simplified Chinese'
]

Then, where you need to switch languages, you can use the setLocale method provided by Laravel to set the locale. For example:

public function switchLocale($locale)
{
App::setLocale($locale);
return redirect()->back();
}

In the above code, we set the locale through the setLocale method and use the redirect method to redirect the user to the previous page.

Through the above steps, we can realize the function of dynamically switching languages ​​in Laravel applications.

Conclusion

Laravel’s internationalization and localization features enable developers to easily meet the needs of different languages ​​and regions. By configuring language files, using translation instructions or methods, and implementing dynamic language switching, we can build a global application. Whether you are developing products for the global market or customizing applications for users in specific regions, Laravel's internationalization and localization functions can provide good support.

Reference code:

<meta charset="UTF-8">
<title>@lang('welcome')</title>

<h1 id="lang-welcome">@lang('welcome')</h1>
<p>@lang('contact_us')</p>

public function index()
{

$welcome = trans('welcome');
$contactUs = trans('contact_us');
return view('welcome', compact('welcome', 'contactUs'));

}

public function switchLocale($locale)
{
App::setLocale ($locale);
return redirect()->back();
}

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