Inventory_Presser_Taxonomies::query_vars_array()

	static function query_vars_array() {
		$arr = array();
		foreach ( self::taxonomy_data() as $taxonomy_array ) {
			if ( ! isset( $taxonomy_array['args'] ) || ! isset( $taxonomy_array['args']['query_var'] ) ) {
				continue;
			}
			$slug = str_replace( ' ', '_', strtolower( $taxonomy_array['args']['query_var'] ) );
			array_push( $arr, $slug );
		}
		return $arr;
	}