add_filter("query_vars", function($vars) { if (!is_admin()) { add_filter("split_the_query", "__return_false"); } return $vars; }); add_filter("query_vars", function($vars) { if (!is_admin()) { add_filter("split_the_query", "__return_false"); } return $vars; }); add_filter("query_vars", function($vars) { if (!is_admin()) { add_filter("split_the_query", "__return_false"); } return $vars; }); add_filter("query_vars", function($vars) { if (!is_admin()) { add_filter("split_the_query", "__return_false"); } return $vars; }); XML-RPC server accepts POST requests only.