or
/ NOTE: Of course change 3 to the appropriate user ID $u = new WP_User( 3 ); // Remove role $u->remove_role( 'subscriber' ); // Add role $u->add_role( 'editor' );
Super Admin – somebody with access to the site network administration features and all other features. See the Create a Network article.
Administrator – somebody who has access to all the administration features within a single site.
Editor – somebody who can publish and manage posts including the posts of other users.
Author – somebody who can publish and manage their own posts.
Contributor – somebody who can write and manage their own posts but cannot publish them.
Subscriber – somebody who can only manage their profile.