Date filter using $row data doesn't return any result
You really shouldn't use PHP in Views have you seen the warning on the module page:


  While this module allows you to directly use PHP inside views which
  may be useful for quick and easy solutions, it is highly advisable to
  use regular handlers and plugins when available (or even to create one
  yourself). Take note that filtering and sorting a view using PHP
  always has a considerable performance impact.


Also this post has instructions how to write a Views handler or Plugin.

You should be able to achieve what you're trying to do with a combination of contextual filters, normal filters and relationships.