来自中间件的Slimphp日志

我在一个使用monog进行日志记录的Slim PHP项目中设置了以下内容,但无法从中间件进行日志记录。

在dependencies.php中

$container['logger'] = function ($c) {
    $settings = $c->get('settings')['logger'];
    $logger = new Monolog\Logger($settings['name']);
    $logger->pushProcessor(new Monolog\Processor\UidProcessor());
    $logger->pushHandler(new Monolog\Handler\StreamHandler($settings['path'], $settings['level']));
    return $logger;
};

然后在middleware.php中

use App\Middleware\Logging;
$app->add(new Logging($container->logger));

应用程序\中间件\日志记录为:

<?php

namespace App\Middleware;

class Logging
{

public function __construct($logger)
{
    $this->logger = $logger;
}

public function __invoke($request, $response, $next)
{
    $routeParams = $request->getAttribute('routeInfo')[2];
    $this->logger->info($request->getMethod() . " -- " . $request->getUri());
    return $next($request, $response);
}
}

然后如何从另一个中间件文件登录?

我还有App/Middleware/CacheMiddleware

<?php

namespace  App\Middleware;

use Psr\Http\Message\RequestInterface;
use Psr\Http\Message\ResponseInterface;

class CacheMiddleware
{
public function __invoke(RequestInterface $request, ResponseInterface $response, callable $next)
{
    //$this->logger->info('test');
    $response->getBody()->write('BEFORE');
    return $next($request, $response);
}
}

但我犯了个错误 Call to a member function info() on null

任何帮助都很好。

谢谢