WordPress at a glance
filter is not described

get_categories_taxonomy filter-hook . WP 2.7.0

Filters the taxonomy used to retrieve terms when calling get_categories().

Usage

add_filter( 'get_categories_taxonomy', 'filter_function_name_2139', 10, 2 );
function filter_function_name_2139( $taxonomy, $args ){
	// filter...

	return $taxonomy;
}
$taxonomy(string)
Taxonomy to retrieve terms from.
$args(array)
An array of arguments. See get_terms().

Changelog

Since 2.7.0 Introduced.

Where the hook is called

get_categories()
get_categories_taxonomy
wp-includes/category.php 38
$args['taxonomy'] = apply_filters( 'get_categories_taxonomy', $args['taxonomy'], $args );

Where the hook is used (in WP core)

Usage not found!