Artisan commands from url, Laravel.

routes.php

<?php

Route::get('/artisan/{key?}',  array('as' => 'artisan', function($key = null)
{
    if($key == "down"){
        try {
            Artisan::call('down');
            echo 'Server Down';
        } catch (Exception $e) {
            Response::make($e->getMessage(), 500);
        }
    } else {
        App::abort(404);
    }
}));