follow up r61357

follow up r61357
* fix up fopen warnings — I was bedazzled by phpUnit's
  set_error_handler that turned warnings into exceptions and Tim set
  me right.
* Use Tim's read loop
* No need for private $fh member
* Fix some minor problems with PHP versions (no "timeout" param in
  pre-5.2.1, POST issue in Hardy's PHP version where timeout is null.)
* Fix how tests are run on old versions of phpUnit.