Laravel development: How to use Laravel Localization to support different languages?

With the acceleration of globalization, more and more websites and applications need to support multiple languages. To make your application better serve global users, Laravel provides a powerful localization toolkit. In this article, we will introduce the basic concepts of Laravel Localization and demonstrate how to use it to support different languages.

What is Laravel Localization?

Laravel Localization is an extension to the Laravel framework that provides a convenient way to handle multilingual strings. This extension allows you to easily use different languages ​​in your application and return different strings based on the user's locale.

How to use Laravel Localization?

To use Laravel Localization, you need to perform the following steps:

Step 1: Install Laravel

If you have already installed Laravel, you can skip this step. If not, please install Laravel first. You can install Laravel through the official documentation https://laravel.com/docs.

Step 2: Configure Laravel Localization

In Laravel, you need to configure the application to support multiple languages. This involves two steps:

1. Configuring the application locale

Laravel Localization supports multiple locales. By default, Laravel supports two locales: English (en) and Spanish (es).

If you need to add other locales, you need to make changes to the config/app.php file.

Find the locale option and set it to the language code of the locale you want to add. For example, if you want to add French, set the locale option to fr.

// config/app.php
'locale' => 'fr',

To check if a locale is available, you can execute the following command:

php artisan tinker
>>> print_r(config('app.available_locales'));

2. Add language file

Now, you need to add each The language file for the language. In Laravel Localization, each language has a language file. By default, these files are located in the resources/lang directory.

To create a new language file, use the command:

php artisan make:lang {language_code}

For example, to create a new French language file, use the following command:

php artisan make:lang fr

This will Create a new directory named fr under the resources/lang directory that contains a language file named messages.php.

Next, you need to open this file and add all the strings you want to translate. For example:

<?php
return [
    'welcome' => "Bienvenue sur mon application",
    'title'   => "La page d'accueil",
];

Now, add a language file in each language directory to create different locales.

Step 3: Use Laravel Localization in your application

Now, you have configured your application to support multiple languages. Next, you need to use Laravel Localization in your PHP program.

Easily navigate multilingual strings in Laravel using the trans function. This function accepts several parameters: the string to be translated and any dynamic parameters.

For example, to output a welcome message in a view, you could write:

<h1 id="trans-messages-welcome">{{ trans('messages.welcome') }}</h1>

This will return the appropriate string based on the selected locale. If the selected locale is French, navigate to resources/lang/fr/messages.php, if the selected locale is English, navigate to resources/lang/en/messages.php.

Another commonly used Laravel Localization feature is to select the user's preferred language. This can be accomplished by accessing the user's HTTP header:

use IlluminateHttpRequest;

public function index(Request $request)
{
    $locale = $request->header('Accept-Language');
    app()->setLocale($locale);

    return view('welcome');
}

This will select the appropriate locale based on the user's preferred language.

Summary

Laravel Localization provides a convenient way to support multiple languages. You can easily support different languages ​​in your Laravel application by configuring the application locale and using the trans function to access multilingual strings. This makes Laravel Localization an essential tool for providing high-quality services to users around the world.

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