wp_admin_bar_sidebar_toggle( WP_Admin_Bar $wp_admin_bar )

Adds the sidebar toggle button.

Parameters

$wp_admin_bar

(Required) The WP_Admin_Bar instance.

Source

File: wp-includes/admin-bar.php 

function wp_admin_bar_sidebar_toggle( $wp_admin_bar ) {
	if ( is_admin() ) {
		$wp_admin_bar->add_menu( array(
			'id'    => 'menu-toggle',
			'title' => '<span class="ab-icon"></span><span class="screen-reader-text">' . __( 'Menu' ) . '</span>',
			'href'  => '#',
		) );
	}
}

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Changelog

Changelog
Version Description
3.8.0 Introduced.