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list($w, $h, $type) = GetImageSize($fileIn);
// Read EXIF data from image file to get the Orientation flag
			$exif = null;
			if (function_exists('exif_read_data') && $type == IMAGETYPE_JPEG ) {
				$exif = @exif_read_data($fileIn);
			}
			// GetImageSize returns an array of width, height, IMAGETYPE, "height=x width=x" (string)
			// The EXIF Orientation flag is examined to determine if width and height need to be swapped, i.e. if the image will be rotated in a subsequent step
			if(isset($exif['Orientation']) && !empty($exif['Orientation'])) {
				
				switch($exif['Orientation']) {
				   case 8: // will need to be rotated 90 degrees left, so swap order of width and height
					  list($h, $w, $type) = GetImageSize($fileIn);
					  break;
				   case 3: // will need to be rotated 180 degrees so don't swap order of width and height
					  list($w, $h, $type) = GetImageSize($fileIn);
					  break;
				   case 6:   // will need to be rotated 90 degrees right, so swap order of width and height
					  list($h, $w, $type) = GetImageSize($fileIn);
					  break;
				}
			}