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

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

public LoggerChannelFactory::addLogger(LoggerInterface $logger

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

public LoggerChannelInterface::setLoggers(array $loggers)

public LogMessageParserInterface::parseMessag

public LoggerChannel::setLoggers(array $loggers)

Array of all instantiated logger channels keyed by channel name. Type: \Drupal\Core\Logger\LoggerChannelInterface[]

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

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