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.
That code doesn't add a header starting from page 2, it just replaces the existing placeholders in headers. To add a header starting from page 2 you need to use the MultiMerge class available in Corporate and Enterprise licenses.