Laravel development: How to use Laravel Localization to achieve multi-language support?

With the trend of globalization, more and more websites and applications need to support multiple languages. In traditional website development, it is usually necessary to manually build pages in multiple languages, which is not only time-consuming and labor-intensive, but also error-prone. With the development of modern development technology, it has become a trend to use frameworks and tools to simplify multi-language support.

In Laravel development, Laravel Localization is a popular way to achieve multi-language support. This article will introduce how to use Laravel Localization to implement multi-language support in Laravel applications.

1. Installation and configuration

First, you need to install the localization component of laravel. You can use composer to install:

composer require "laravelcollective/html":"^5.8.0"
php artisan vendor:publish --tag=laravel-errors --force

Then, you need to create a new file locale.php under app/config to configure supported language options:

return [
    'locales' => ['en' => 'English', 'zh' => '中文'],
    'default_locale' => 'en'
];

Here, the locales array contains all Supported language options where the key of each element is the code of the language and the value is the name of the language. default_locale specifies the default language option.

2. Create multi-language resources

Next, you need to create the corresponding language resource files for each supported language. A language resource file usually contains an array containing all localized strings used in that locale. These files can be quickly created using the artisan command, as shown below:

php artisan make:lang en
php artisan make:lang zh

This will create two lang directories, one for English and one for Chinese.

3. Edit multilingual resources

Edit the language resource file for each locale, adding the localized strings specific to that locale to the array. For example, in the en.php and zh.php files, you can add the following:

// en.php
return [
    "welcome" => "Welcome to our site",
    "about" => "About Us",
    "contact" => "Contact Us"
];

// zh.php
return [
    "welcome" => "欢迎访问我们的网站",
    "about" => "关于我们",
    "contact" => "联系我们"
];

4. Use localized strings in views

When the view needs to include local When converting strings, you can use the trans function provided in Laravel Localization. The trans function accepts a localized string key and returns the corresponding localized string. For example, in a blade template, you can use the trans function like this:

<h1>{{ trans('messages.welcome') }}</h1>

Here, the trans function will return the corresponding localized string based on the current locale.

5. Switch language options

Finally, you can also provide the function of switching language options in the application. You can create a drop-down box in the view to toggle the language option and use JavaScript to submit the form so that the selected language option is saved to the Laravel Session.

<form id="locale-form" method="POST" action="{{ url('locale') }}">
    {{ csrf_field() }}
    <select name="locale" onchange="document.querySelector('#locale-form').submit();">
        @foreach (Config::get('locale.locales') as $key => $value)
            <option value="{{ $key }}" {{ ($key === App::getLocale()) ? ' selected' : '' }}>{{ $value }}</option>
        @endforeach
    </select>
</form>

Add the following code to your route to handle requests from the language options form:

Route::post('locale', function(Request $request) {
    App::setLocale($request->locale);
    return redirect()->back();
});

This will update the language options in the current session and redirect to the previous page.

Conclusion

Using Laravel Localization aims to simplify multi-language support to easily localize all page elements in Laravel applications. The steps presented in this article can be used as a starting point for implementing multi-language support in your Laravel application. In the actual process, appropriate adjustments and customization can also be made according to the needs of the application.

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