Learndash_Admin_Filter::get_sql_join_clause Learndash_Admin_Filter::get_sql_join_clause( mixed $filter_value ) Returns the SQL join clause to apply this filter. ContentsDescription Parameters Return Source Changelog Related @package Description # Parameters # $filter_value (mixed) (Required) The value of the filter. Return # (string) The SQL join clause. Source # File: includes/admin/classes-filters/class-learndash-admin-filter.php Changelog # Changelog Version Description 4.2.0 Introduced. Related # @package # LearnDash / Filters