Question from the Symfony 3 test

The methods for logging a message are named after the level of criticality of the context, such as: debug(), info(), emergency(),...

The configuration of the log storage locations is defined in the environment-specific configuration files: config_dev.yml, config_prod.yml.

In a request executed in the production environment, only the following criticality levels are stored: error, critical, alert and emergency.

To use a pre-configured logger that uses a given channel, it is possible to create a tagged service whose name is “monolog.channel”.