Generate multiple tag query URLs
$url = parse_url( $your_url ); $query = $url[‘query’]; $args_arr = array(); parse_str( $query, $args_arr ); if( isset( $args_arr[‘param’] ) ) { $query_string = $args_arr[‘param’]; $query_string .= ‘,value2’; } else { $query_string = ‘value2’; } add_query_arg( ‘param’, $query_string ); That’s completely untested, but you get the concept. Basically, wordpress is gonna want to replace what you … Read more