WordPress at a glance
action is not described

post_submitbox_start action-hook . WP 2.7.0

Fires at the beginning of the publishing actions section of the Publish meta box.

Usage

add_action( 'post_submitbox_start', 'action_function_name_294' );
function action_function_name_294( $post ){
	// action...
}
$post(WP_Post/null)
WP_Post object for the current post on Edit Post screen, null on Edit Link screen.

Notes

  • Since 4.9.0 Added the $post parameter.

Where the hook is called

post_submit_meta_box()
link_submit_meta_box()
wp-admin/includes/meta-boxes.php 272
do_action( 'post_submitbox_start', $post );
wp-admin/includes/meta-boxes.php 958
do_action( 'post_submitbox_start', null );

Where the hook is used (in WP core)

Does not used.