wp_admin_bar_header() │ WP 3.1.0

Deprecated from version 6.4.0. It is no longer supported and can be removed in future releases. Use wp_enqueue_admin_bar_header_styles() instead.

Prints style and scripts for the admin bar.

No Hooks.

Return

null. Nothing (null).

Usage

wp_admin_bar_header();

Changelog

Since 3.1.0 Introduced.
Deprecated since 6.4.0 Use wp_enqueue_admin_bar_header_styles() instead.

wp_admin_bar_header() code WP 6.6.1

wp-includes/deprecated.php 
<?php
function wp_admin_bar_header() {
	_deprecated_function( __FUNCTION__, '6.4.0', 'wp_enqueue_admin_bar_header_styles' );
	$type_attr = current_theme_supports( 'html5', 'style' ) ? '' : ' type="text/css"';
	?>
	<style<?php echo $type_attr; ?> media="print">#wpadminbar { display:none; }</style>
	<?php
}