Function: Updates a post meta field based on the given post ID. or delete existing meta if $meta_value is empty

Function: Return the course benefits which belongs with _benefits meta with the course

Filter Hook: Filters the course benefits data

Function:

Function: Sync course rating by course ID and save rating over view to the course meta.

Function:

Function: Return dozent site logo ID

Filter Hook: Filter the logo ID

Function: Get the per page number. Declare how many results show per page based on settings

Filter Hook: Filter dozent_show_per_page() output