if (is_array($getimagesize)) {
                    $this->DebugMessage('getimagesize(' . $this->sourceFilename . ') SUCCEEDED: ' . print_r($getimagesize, true), __FILE__, __LINE__);
                } else {
                    $this->DebugMessage('getimagesize(' . $this->sourceFilename . ') FAILED with error "' . $GetImageSizeError . '"', __FILE__, __LINE__);
                }