Warning: This hook has been deprecated. Use ‘{$taxonomy_add_form’} instead.
add_tag_form WordPress Hook
This hook is used to add a new tag form to the post editing screen. It can be used to add a form for a custom taxonomy or for a built-in taxonomy such as tags or categories.
do_action_deprecated( 'add_tag_form',  string $taxonomy  ) #
Fires at the end of the Add Tag form.
Contents
Parameters
- $taxonomy
- (string)The taxonomy slug. 
Source
File: wp-admin/edit-tags.php
Changelog
| Version | Description | 
|---|---|
| 3.0.0 | Use '{$taxonomy_add_form'} instead. | 
| 2.7.0 | Introduced. |