_wp_admin_bar_init() │ WP 3.1.0

Instantiates the admin bar object and set it up as a global for access elsewhere.

UNHOOKING THIS FUNCTION WILL NOT PROPERLY REMOVE THE ADMIN BAR. For that, use show_admin_bar(false) or the show_admin_bar filter.

Internal function — this function is designed to be used by the kernel itself. It is not recommended to use this function in your code.

Hooks from the function

Returns

bool. Whether the admin bar was successfully initialized.

Usage

_wp_admin_bar_init();

Notes

Global. WP_Admin_Bar. $wp_admin_bar

Changelog

Since 3.1.0 Introduced.

_wp_admin_bar_init() code WP 7.1

wp-includes/admin-bar.php 
function _wp_admin_bar_init() {
	global $wp_admin_bar;

	if ( ! is_admin_bar_showing() ) {
		return false;
	}

	/* Load the admin bar class code ready for instantiation */
	require_once ABSPATH . WPINC . '/class-wp-admin-bar.php';

	/* Instantiate the admin bar */

	/**
	 * Filters the admin bar class to instantiate.
	 *
	 * @since 3.1.0
	 *
	 * @param string $wp_admin_bar_class Admin bar class to use. Default 'WP_Admin_Bar'.
	 */
	$admin_bar_class = apply_filters( 'wp_admin_bar_class', 'WP_Admin_Bar' );
	if ( class_exists( $admin_bar_class ) ) {
		$wp_admin_bar = new $admin_bar_class();
	} else {
		return false;
	}

	$wp_admin_bar->initialize();
	$wp_admin_bar->add_menus();

	return true;
}