php获取request_uri

urlParameters = http_build_query(
    filter_input_array(
        INPUT_GET,
        FILTER_SANITIZE_URL
    )
);

$_request_uri = filter_input(INPUT_SERVER, 'SCRIPT_URL', FILTER_SANITIZE_URL). ($urlParameters ? "?{$urlParameters}" : "");
print_r($_request_uri);