In reply to Jay Syder.

Hi Jay, that's a good question. The answer is "yes and no." The "yes" part is that some aspects of PHP7 can be seen statically, e.g. PHP code features which are not PHP7 compatible. The "no" part is that some aspects aren't visible until you try to execute the code, which might involve e.g. submitting a form inside an authenticated page in wp-admin, which is not generally possible to scan for.