* Removed a comment, "FIXME require in a foreach", require_once() will be

* Removed a comment, "FIXME require in a foreach", require_once() will be
  evaluated exactly once during execution (it has an effect similar to the
  static keyword), do demonstrate this behaviour run the code
    for ($i = 0; $i < 10; ++$i) require("file.txt");
  in a directory that has a file called 'file.txt' and then change require()
  to require_once();