if (SUCCESS == zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|s!", &header_name_str, &header_name_len)) {
if (header_name_str && header_name_len) {
if (SUCCESS == zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|s!", &header_name_str, &header_name_len)) {
if (header_name_str && header_name_len) {