Explanation: Default logging goes to PHP error log.
Explanation: Default logging goes to PHP error log.
Explanation: get_logger() returns logger instance.
Explanation: Logger is tied to class name.
Explanation: info() logs INFO level.
Explanation: log() is equivalent to info().
Explanation: Docs specify INFO, WARN, ERROR.
Explanation: warn() logs warnings.
Explanation: error() logs ERROR level.
Explanation: Full structured log format.
Explanation: Standard format is timestamp | level | class | message.