artificial_delay = $artificial_delay; } public function execute($url, $data = NULL) { if ($this->artificial_delay > 0) { sleep($this->artificial_delay); } $response = ' 904017666730LARGEFALSE6Priority Mail Express 2-Day<sup>™</sup>42.25Priority Mail Express 2-Day<sup>™</sup> Hold For Pickup42.25Priority Mail 2-Day<sup>™</sup>12.20Standard Post<sup>®</sup>10.01Media Mail Parcel3.65Library Mail Parcel3.48'; return $response; } }