message: Z_TYPE_P(reason) = IS_NULL to ZVAL_NULL(reason)
diff: @@ -1690,7 +1690,7 @@ void php_swoole_onClose(swServer *serv, swDataHead *info)
  }
  else
  {
  - Z_TYPE_P(reason) = IS_NULL;
  + ZVAL_NULL(reason);
  }
  args[3] = status_code;
  @@ -1746,7 +1746,7 @@ void php_swoole_onClose(swServer *serv, swDataHead *info)
  }
  else
  {
  - Z_TYPE_P(reason) = IS_NULL;
  + ZVAL_NULL(reason);
  }
  args[3] = &status_code;
  