- foreach ( explode(',', $orderby) as $ordparam )
- $orderparams[] = 'link_' . trim($ordparam);
+ foreach ( explode(',', $orderby) as $ordparam ) {
+ $ordparam = trim($ordparam);
+ if ( in_array( $ordparam, array( 'name', 'url', 'visible', 'rating', 'owner', 'updated' ) ) )
+ $orderparams[] = 'link_' . $ordparam;
+ }