*/
function bbp_get_user_favorites_topic_ids( $user_id = 0 ) {
if ( !$user_id = bbp_get_user_id( $user_id ) )
return false;
$favorites = (string) get_user_meta( $user_id, '_bbp_favorites', true );
$favorites = (array) explode( ',', $favorites );
$favorites = array_filter( $favorites );
return apply_filters( 'bbp_get_user_favorites_topic_ids', $favorites, $user_id );
}
/**
* Check if a topic is in user's favorites or not
*
* @since bbPress (r2652)
*
* @param int $user_id Optional. User id
* @param int $topic_id Optional. Topic id
* @uses bbp_get_user_id() To get the user id