README

This library enables Monolog as an ErrorHandler in Mezzio.

It catches all uncaught exceptions and logs them to the configured Monolog handlers.

What is Mezzio?

Mezzio is a PHP framework for building web applications and APIs. It is based on a middleware pipeline architecture, which makes it flexible and extensible.

What is Monolog?

Monolog is a popular logging library for PHP. It supports a wide variety of handlers, which allows you to send your logs to files, sockets, inboxes, databases and various web services.

Install

Install the library using composer:

composer require mm-plazz/mezzio-monolog

Configuration

First, you need to enable the component by adding the Plazz\Mezzio\Monolog\ConfigProvider to your config/config.php:

<?php

use Laminas\ConfigAggregator\ConfigAggregator;
use Laminas\ConfigAggregator\ArrayProvider;
use Laminas\ConfigAggregator\PhpFileProvider;

$cacheConfig = [
    'config_cache_path' => 'data/cache/config-cache.php',
];

$aggregator = new ConfigAggregator([
    \Plazz\Mezzio\Monolog\ConfigProvider::class, // <-- Add this line

    // ... other providers

], $cacheConfig['config_cache_path']);

return $aggregator->getMergedConfig();

Next, create a config/autoload/monolog.global.php file to configure the Monolog handlers:

<?php

declare(strict_types=1);

use Monolog\Level;

return [
    'monolog' => [
        // StreamHandler configuration
        'stream' => [
            'path' => 'data/log/myapp.log',
            'level' => Level::Debug,
        ],
        // SentryHandler configuration
        'sentry' => [
            'dsn' => 'https://xxxxx@sentry.io/12345',
            'level' => Level::Debug,
        ],
    ],
];

The Monolog ErrorHandler will be active only when Mezzio is in "production mode" ($config['debug'] is false). To switch to "production mode", you can use composer run development-disable. To switch back to "development mode", use composer run development-enable.

Handlers

This library supports the following Monolog handlers out of the box:

• StreamHandler: Logs records into any PHP stream, which is ideal for log files.

  • path (string): The path to the log file. Defaults to data/log/app.log.
  • level (Monolog\Level): The minimum logging level at which this handler will be triggered. Defaults to Level::Debug.

• SentryHandler: Logs records to Sentry.io. This handler requires the sentry/sdk package.

  • dsn (string): Your Sentry DSN.
  • level (Monolog\Level): The minimum logging level at which this handler will be triggered. Defaults to Level::Debug.
  • Any other options will be passed to the Sentry init() function.

Usage

This library automatically registers the Monolog listener with Mezzio's ErrorHandler. No further configuration is needed to make it work.

If you want to use the Monolog logger in your own classes, you can fetch the Plazz\Mezzio\Monolog\Listener\Listener service from the container. This class provides all the logging methods from the PSR-3 logger interface.

Here is an example of how to use it in a factory:

<?php

namespace App\Factory;

use App\MyService;
use Psr\Container\ContainerInterface;
use Plazz\Mezzio\Monolog\Listener\Listener as MonologListener;

class MyServiceFactory
{
    public function __invoke(ContainerInterface $container): MyService
    {
        $monologListener = $container->get(MonologListener::class);
        return new MyService($monologListener);
    }
}

And in your service:

<?php

namespace App;

use Plazz\Mezzio\Monolog\Listener\Listener as MonologListener;

class MyService
{
    private MonologListener $logger;

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

    public function doSomething(): void
    {
        $this->logger->info('Doing something...');
        // ...
    }
}

Contributing

Contributions are welcome! Please feel free to submit a pull request or open an issue.

License

This project is licensed under the GPL-3.0 License - see the LICENSE file for details.