do_action( 'in_admin_header' ) Fires at the beginning of the content section in an admin page. ContentsDescription Source Changelog User Contributed Notes Description #Description Source #Source File: wp-admin/admin-header.php View on Trac Top ↑Changelog #Changelog Changelog Version Description 3.0.0 Introduced. Top ↑User Contributed Notes #User Contributed Notes You must log in before being able to contribute a note or feedback.