'my_table', 'callback' => 'updateDatabaseRow', 'rows_per_iteration' => 100, ); // Initialize the massCallback object $massCallback = Phpfox::getService('mass.callback'); // Execute the massCallback function $massCallback->execute($params); ?>In this example, we define a callback function `updateDatabaseRow` that takes a single row of data as input and updates that row in the database. We then create an array of parameters for the massCallback function, specifying the table name, the name of the callback function, and the number of rows to process per iteration. Finally, we initialize the massCallback object and execute the function. Phpfox massCallback is a package library included in the Phpfox framework. It is designed to make it easy for developers to perform bulk operations on data in their applications, and is well-suited for use in applications that need to handle large amounts of data efficiently.