WordPress Version: 6.1
/**
* Legacy function used to generate the categories checklist control.
*
* @since 0.71
* @deprecated 2.6.0 Use wp_category_checklist()
* @see wp_category_checklist()
*
* @global int $post_ID
*
* @param int $default_category Unused.
* @param int $category_parent Unused.
* @param array $popular_ids Unused.
*/
function dropdown_categories($default_category = 0, $category_parent = 0, $popular_ids = array())
{
_deprecated_function(__FUNCTION__, '2.6.0', 'wp_category_checklist()');
global $post_ID;
wp_category_checklist($post_ID);
}