【Laravel】View::shareを用いて共通の値を各ビューに渡す方法

php artisan make:provider CommonSeriviceProvider

'providers' => [

    ...

    App\Providers\CommonSeriviceProvider::class,

]

<?php

namespace App\Providers;

use App\Http\ViewComposers\CommonComposer;
use Illuminate\Support\Facades\View;
use Illuminate\Support\ServiceProvider;

class CommonServiceProvider extends ServiceProvider
{
    /**
     * コンテナ結合の登録
     *
     * @return void
     */
    public function boot()
    {
         View::share('xxx', 'zzz');
    }
}