__set( $key, $value)

The Magic Method __set( $key, $value ) does not update the user meta in the database. This method sets the key/value pair to the object. It is not calling update_user_meta() or a db update query.

Is there not a function to save a modified WP_USER object back to the database after it has been modified?

See core: wp-includes/capabilities

Catapultparlor 18:05, 25 November 2012 (UTC)

I've added a note on which functions to use.

-Jdgrimes 21:47, 10 April 2014 (UTC)