I'am trying to filter my archive page by clicking links. When clicked they execute the add_query_arg command.
Everything works fine so far.
But now i want to add combinations within the same custom taxonomy.
ex: http://url.com/archive/ '?events=test&events=test2'
now the question, how to add two times the same argument with add_query_arg without overwriting the first one ? And how to get them again ?
Hope someone can help me out here.