The LogRecord modelΒΆ

All logging data is modeled using \TYPO3\CMS\Core\Log\LogRecord.

This model has the following properties:

A unique identifier for each request which is created by the TYPO3 bootstrap.
The micro-timestamp when the record is created.
The name of the logger which created the LogRecord, usually the fully qualified class name where the Logger has been instanciated.
An integer severity level from \TYPO3\CMS\Core\Log\LogLevel.
The log message string.
Any additional data, encapsulated within an array.

The API to create a new instance of LogRecord is \TYPO3\CMS\Core\Log\Logger:log() or one of the shorthand methods.

LogRecord implements the ArrayAccess interface so that the properties can be accessed like a native array, for example: $logRecord['requestId']. It also implements a __toString() method for your convenience, which returns the log records as a simplified string.

A LogRecord can be processed using LogProcessors or LogWriters. LogProcessors are meant to add values to the data property of LogRecord. For example, if you would like to add a stack trace, use \TYPO3\CMS\Core\Log\Processor\IntrospectionProcessor.

LogWriters are used to write a LogRecord to a particular target, for example a log file.