when I link to category like this: http://website/?cat=1 the
single_cat_title() works just like it should and displays the name of the category. But if I link to multiple categories like this: http://website/?cat=1,3 then it just shows the name of one category.
Is there any way to display both category names when linking like that? I found this support topic but I don't understand if the code in that topic is supposed to work as-is or where it's meant to be placed: http://wordpress.org/support/topic/dislaying-title-of-two-category-after-search