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wp_widgets_init()

Registers all of the default WordPress widgets on startup.

Description

Calls ‘widgets_init’ action after all of the WordPress widgets have been registered.

Source

File: wp-includes/widgets.php 

function wp_widgets_init() {
	if ( ! is_blog_installed() ) {
		return;
	}

	register_widget( 'WP_Widget_Pages' );

	register_widget( 'WP_Widget_Calendar' );

	register_widget( 'WP_Widget_Archives' );

	if ( get_option( 'link_manager_enabled' ) ) {
		register_widget( 'WP_Widget_Links' );
	}

	register_widget( 'WP_Widget_Media_Audio' );

	register_widget( 'WP_Widget_Media_Image' );

	register_widget( 'WP_Widget_Media_Gallery' );

	register_widget( 'WP_Widget_Media_Video' );

	register_widget( 'WP_Widget_Meta' );

	register_widget( 'WP_Widget_Search' );

	register_widget( 'WP_Widget_Text' );

	register_widget( 'WP_Widget_Categories' );

	register_widget( 'WP_Widget_Recent_Posts' );

	register_widget( 'WP_Widget_Recent_Comments' );

	register_widget( 'WP_Widget_RSS' );

	register_widget( 'WP_Widget_Tag_Cloud' );

	register_widget( 'WP_Nav_Menu_Widget' );

	register_widget( 'WP_Widget_Custom_HTML' );

	/**
	 * Fires after all default WordPress widgets have been registered.
	 *
	 * @since 2.2.0
	 */
	do_action( 'widgets_init' );
}

Uses

Uses Description
wp-includes/functions.php: is_blog_installed()

Determines whether WordPress is already installed.
wp-includes/widgets.php: widgets_init

Fires after all default WordPress widgets have been registered.
wp-includes/plugin.php: do_action()

Execute functions hooked on a specific action hook.
wp-includes/option.php: get_option()

Retrieves an option value based on an option name.
wp-includes/widgets.php: register_widget()

Register a widget

Changelog

Version Description
2.2.0 Introduced.

© 2003–2019 WordPress Foundation
Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/functions/wp_widgets_init