php-symfonyHow to use Monolog in PHP Symfony?

Monolog is a logging library for PHP Symfony applications. It provides a simple and powerful way to log messages to various log handlers.

To use Monolog in a Symfony application, first install the MonologBundle package:

composer require symfony/monolog-bundle

Then, create a logger service in the config/services.yaml file:

# config/services.yaml
services:
    App\Logger\MyLogger:
        arguments: ['@monolog.logger.my_logger']

The code above creates a service called App\Logger\MyLogger that uses the my_logger logger from Monolog.

To use the logger, inject it into a controller or service:

// src/Controller/MyController.php

use App\Logger\MyLogger;

class MyController
{
    private $logger;

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

    public function index()
    {
        $this->logger->info('This is a log message');
    }
}

The code above injects the MyLogger service into the MyController controller and uses it to log a message.

Helpful links

• MonologBundle Documentation
• Monolog Documentation

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