Warning: You are browsing the documentation for version 2.2 which is not maintained anymore.
If some of your projects are still using this version, consider upgrading.
How to log Messages to different Files
2.1
The ability to specify channels for a specific handler was added to the MonologBundle for Symfony 2.1.
The Symfony Standard Edition contains a bunch of channels for logging: doctrine,
event, security and request. Each channel corresponds to a logger
service (monolog.logger.XXX) in the container and is injected to the
concerned service. The purpose of channels is to be able to organize different
types of log messages.
By default, Symfony2 logs every messages into a single file (regardless of the channel).
Switching a Channel to a different Handler
Now, suppose you want to log the doctrine channel to a different file.
To do so, just create a new handler and configure it like this:
- YAML
- XML
- PHP
1 2 3 4 5 6 7 8 9 10 11
# app/config/config.yml
monolog:
handlers:
main:
type: stream
path: /var/log/symfony.log
channels: [!doctrine]
doctrine:
type: stream
path: /var/log/doctrine.log
channels: [doctrine]YAML specification
You can specify the configuration by many forms:
1 2 3 4 5 6 7
channels: ~ # Include all the channels
channels: foo # Include only channel "foo"
channels: !foo # Include all channels, except "foo"
channels: [foo, bar] # Include only channels "foo" and "bar"
channels: [!foo, !bar] # Include all channels, except "foo" and "bar"Creating your own Channel
You can change the channel monolog logs to one service at a time. This is done
by tagging your service with monolog.logger and specifying which channel
the service should log to. By doing this, the logger that is injected into
that service is preconfigured to use the channel you've specified.
For more information - including a full example - read "The Dependency Injection Tags" in the Dependency Injection Tags reference section.