HTTP/2 301
server: nginx
date: Mon, 29 Dec 2025 08:29:31 GMT
content-type: text/html; charset=UTF-8
x-olaf: ⛄
vary: accept, content-type
x-redirect-by: WordPress
location: https://developer.wordpress.org/reference/functions/_wp_admin_html_begin/
x-frame-options: SAMEORIGIN
alt-svc: h3=":443"; ma=86400
x-nc: MISS ord 2
HTTP/2 200
server: nginx
date: Mon, 29 Dec 2025 08:29:31 GMT
content-type: text/html; charset=UTF-8
vary: Accept-Encoding
x-olaf: ⛄
vary: accept, content-type
link:
; rel="https://api.w.org/"
link:
; rel="alternate"; title="JSON"; type="application/json"
link: ; rel=shortlink
x-frame-options: SAMEORIGIN
content-encoding: gzip
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_wp_admin_html_begin() – Function | Developer.WordPress.org
_wp_admin_html_begin()
Prints out the beginning of the admin HTML header.
function _wp_admin_html_begin() {
global $is_IE;
$admin_html_class = ( is_admin_bar_showing() ) ? 'wp-toolbar' : '';
if ( $is_IE ) {
header( 'X-UA-Compatible: IE=edge' );
}
?>
<!DOCTYPE html>
<html class="<?php echo $admin_html_class; ?>"
<?php
/**
* Fires inside the HTML tag in the admin header.
*
* @since 2.2.0
*/
do_action( 'admin_xml_ns' );
language_attributes();
?>
>
<head>
<meta http-equiv="Content-Type" content="<?php bloginfo( 'html_type' ); ?>; charset=<?php echo get_option( 'blog_charset' ); ?>" />
<?php
}
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