bootstrap.php

Add monolog to composer.json in the "require" object:

"monolog/monolog": "@stable"

// THESE GO TO NGINX CONFIG app/dev/nginx/losofacebook under server

    proxy_buffer_size   2048k;
    proxy_buffers   4 2048k;
    proxy_busy_buffers_size   2048k;
    fastcgi_buffers 8 2048k;
    fastcgi_buffer_size 2048k;

// Some new uses to the top of bootstrap.php

use Silex\Provider\MonologServiceProvider;
use Monolog\Handler\ChromePHPHandler;


// These go before the final return $app row.

$app->register(
    new MonologServiceProvider(),[]
);

$app['monolog.handler'] = function () use ($app) {
    return new ChromePHPHandler($app['monolog.level']);
};
if ( $app['debug'] ) {
    
    $logger = new Doctrine\DBAL\Logging\DebugStack();
    
    $app['db.config']->setSQLLogger($logger);
    
    $app->after(function(Request $request, Response $response) use ($app, $logger) {
        $queries = array_slice($logger->queries, sizeof($logger->queries) - 100);
        foreach ($queries as $query) {
            $app['monolog']->debug($query['sql']);
        }
    });
}