laravel 5 - configuring minimal log level

app.php

<?php

// app/config/app.php

return [
  // ....
  'log-level' => 'info',
  'log' => 'errorlog',
  
];
  
  

AppServiceProvider.php

<?php

namespace App\Providers;

use Illuminate\Support\ServiceProvider;
use Log;
use Config;

class AppServiceProvider extends ServiceProvider
{
    /**
     * Bootstrap any application services.
     *
     * @return void
     */
    public function boot()
    {
        //
    }

    /**
     * Register any application services.
     *
     * @return void
     */
    public function register()
    {
        //
        $monolog = Log::getMonolog();

        foreach($monolog->getHandlers() as $handler) {
          $handler->setLevel(Config::get('app.log-level'));
        }
    }
}

This is a global change. What should I do if error.log or just output error information