WP_Widget_Tag_Cloud
Class: Core class used to implement a Tag cloud widget.
Source: wp-includes/widgets/class-wp-widget-tag-cloud.php:17
WP_Widget_Text
Class: Core class used to implement a Text widget.
Source: wp-includes/widgets/class-wp-widget-text.php:17
wp_xmlrpc_server
Class: ClassicPress XMLRPC server implementation.
Source: wp-includes/class-wp-xmlrpc-server.php:24
wpdb
Class:
Source: wp-includes/class-wpdb.php:55