The Silex Web Profiler service provider allows you to use the wonderful Symfony web debug toolbar and the Symfony profiler in your Silex application.

To enable it, add this dependency to your composer.json file:

{
    "require": {
        "silex/web-profiler": "~1.0"
    }
}

And enable it in your application:

use Silex\Provider;

$app->register(new Provider\WebProfilerServiceProvider(), array(
    'profiler.cache_dir' => __DIR__.'/../cache/profiler',
    'profiler.mount_prefix' => '/_profiler', // this is the default
));

The provider depends on ServiceControllerServiceProvider, TwigServiceProvider and UrlGeneratorServiceProvider, so you also need to enable those if that's not already the case:

$app->register(new Provider\ServiceControllerServiceProvider());
$app->register(new Provider\TwigServiceProvider());
$app->register(new Provider\UrlGeneratorServiceProvider());

If you are using FormServiceProvider, the WebProfilerServiceProvider will detect that and enable the corresponding panels.

Make sure to register all other required or used service providers before WebProfilerServiceProvider.

If you are using MonologServiceProvider for logs, you must also add symfony/monolog-bridge as a dependency in your composer.json to get the logs in the profiler.