An array of arrays of \Psr\Log\LoggerInterface keyed by priority. Type:

The request stack object. Type: \Symfony\Component\HttpFoundation\RequestStack File

Logger channel interface. This interface defines the full behavior of the central Drupal logger facility. However, when writing code that does

Log message severity -- Alert: action must be taken immediately. File core/lib/Drupal/Core/Logger/RfcLogLevel

An array with the severity levels as keys and labels as values. Type:

Log message severity -- Informational messages. File core/lib/Drupal/Core/Logger/RfcLogLevel.php, line

public LoggerChannelInterface::setLoggers(array $loggers)

public RfcLoggerTrait::emergency($message, array $context = array())

public RfcLoggerTrait::info($message, array $context = array())

Log message severity -- Normal but significant conditions. File core/lib/Drupal/Core/Logger/RfcLogLevel