if (mode & PHP_OUTPUT_HANDLER_START) {
if (HTTP_G(etag).started) {
http_error(HE_WARNING, HTTP_E_RUNTIME, "ob_etaghandler can only be used once");
if (mode & PHP_OUTPUT_HANDLER_START) {
if (HTTP_G(etag).started) {
http_error(HE_WARNING, HTTP_E_RUNTIME, "ob_etaghandler can only be used once");