unregister_default_headers() │ WP 3.0.0

Unregisters default headers.

This function must be called after register_default_headers() has already added the header you want to remove.

No Hooks.

Return

true|false|null. A single header returns true on success, false on failure. There is currently no return value for multiple headers.

Usage

unregister_default_headers( $header );

$header(string|array) (required)

The header string id (key of array) to remove, or an array thereof.

Notes

• See: register_default_headers()
• Global. Array. $_wp_default_headers

Changelog

unregister_default_headers() unregister default headers code ^{WP 6.5.2}

function unregister_default_headers( $header ) {
	global $_wp_default_headers;

	if ( is_array( $header ) ) {
		array_map( 'unregister_default_headers', $header );
	} elseif ( isset( $_wp_default_headers[ $header ] ) ) {
		unset( $_wp_default_headers[ $header ] );
		return true;
	} else {
		return false;
	}
}