How to log messages with the Symfony Logger component?

To log messages with the Symfony Logger component, first you need to configure a logger service in your Symfony application. Here's a step-by-step guide on how to do so:

Install the Logger component using composer:

composer require symfony/logger

Configure the logger service in your services.yaml file:

services:
    app.logger:
        class: Symfony\Component\Logger\Logger
        arguments: ['%kernel.logs_dir%']

Inject the logger service into your classes where you want to log messages:

use Symfony\Component\Logger\Logger;
use Psr\Log\LoggerInterface;

class MyClass
{
    private $logger;

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

    public function myMethod()
    {
        $this->logger->info('This is an info message');
        $this->logger->error('This is an error message');
    }
}

Now you can use the logger service to log messages in your application.

For more advanced logging, you can also use Monolog which is integrated with the Symfony Logger component. Monolog provides a variety of handlers, formatters, and processors to customize your logging configuration. You can find more information on how to use Monolog with Symfony in the official Symfony documentation: https://symfony.com/doc/current/logging.html