// Create a new log object $log = new \Monolog\Logger('myLogger'); // Add a description to a log entry $log->info('Something happened.', array('description' => 'This is a description of what happened.'));In this example, we create a new log object using the Monolog package library. We then use the `info` method to add a new entry to the log, and we include a `description` parameter that contains a description of what happened. Overall, the addDescription function is a very useful tool for debugging and troubleshooting your PHP applications, and it can be used in combination with other logging tools and functions to create comprehensive logs that help you understand what's happening in your code.