Topic closed:
Please note this is an old forum thread. Information in this post may be out-to-date and/or erroneous.
Every phpdocx version includes new features and improvements. Previously unsupported features may have been added to newer releases, or past issues may have been corrected.
\CreateGraphic::$_rId is declared statically, however in \CreateGraphic::__construct it's used dynamically ($this->_rId = '';) resulting in a runtime Notice.
addition: removing the `static` keyword solved the issue so far. I could not find any usage where it's used statically, so that can probably be removed.