将控制器中的变量引用到所有刀片Laravel 5

php artisan make:provider ViewComposerServiceProvider

namespace App\Providers;

use Illuminate\Support\Facades\View;
use Illuminate\Support\ServiceProvider;

class ViewComposerServiceProvider extends ServiceProvider
{
    /**
     * Register services.
     *
     * @return void
     */
    public function register()
    {
        //
    }

    /**
     * Bootstrap services.
     *
     * @return void
     */
    publicboot()
    {
        View::composer('*', function ($view) {
            $view->with('variableName', 'Your variable value');
        });
    }
}

'providers' => [
    // ...
    App\Providers\ViewComposerServiceProvider::class,
],

<p>{{ $variableName }}</p>