apply_filters( 'post_edit_category_parent_dropdown_args', array $parent_dropdown_args )

Parameters

$parent_dropdown_args

(array) Array of arguments to generate parent dropdown.

• 'taxonomy'
  (string) Name of the taxonomy to retrieve.
• 'hide_if_empty'
  (bool) True to skip generating markup if no categories are found. Default 0.
• 'name'
  (string) Value for the 'name' attribute of the select element. Default "new{$tax_name}_parent".
• 'orderby'
  (string) Which column to use for ordering terms. Default 'name'.
• 'hierarchical'
  (bool|int) Whether to traverse the taxonomy hierarchy. Default 1.
• 'show_option_none'
  (string) Text to display for the "none" option. Default "— {$parent} —", where $parent is 'parent_item' taxonomy label.