Learndash_Admin_Filter::get_input_class Learndash_Admin_Filter::get_input_class( string $additional_classes = '' ) Returns the input CSS classes. ContentsDescription Parameters Return Source Changelog Related @package Description # Parameters # $additional_classes (string) (Optional) Additional classes if needed. Default value: '' Return # (string) Source # File: includes/admin/classes-filters/class-learndash-admin-filter.php Changelog # Changelog Version Description 4.2.0 Introduced. Related # @package # LearnDash / Filters