Giving PHP include()'d files parent variable scope

Question

Is there anyway to for an included file to be used in a parent scope to the one it was called in? The following example is simplified, but does the same job.

In esse

Answer 1

The only way I know how to is to use the superglobal array.

main.php:

  $GLOBALS['myVar'] = 'something bar foo';

  $success = myPlugin('included.php');

  if($success)
  {
    echo $GLOBALS['myResult'];
  }

included.php: