WordPress at a glance
action is not described

add_tag_form_fields action-hook . WP 3.0.0

Fires after the Add Tag form fields for non-hierarchical taxonomies.

Usage

add_action( 'add_tag_form_fields', 'action_function_name_1916' );
function action_function_name_1916( $taxonomy ){
	// action...
}
$taxonomy(string)
The taxonomy slug.

Changelog

Since 3.0.0 Introduced.

Where the hook is called

In file: /wp-admin/edit-tags.php
add_tag_form_fields
wp-admin/edit-tags.php 512
do_action( 'add_tag_form_fields', $taxonomy );

Where in WP core the hook is used

Usage not found!