How To Get The Resized Image Width/Height (Not Original Sizes)

<?php
 
//This variable specifies relative path to the folder, where the gallery with uploaded files is located.
//Do not forget about the slash in the end of the folder name.
$galleryPath = '../UploadedFiles/';
 
require_once '../Includes/gallery_helper.php';
 
require_once '../ImageUploaderPHP/UploadHandler.class.php';
 
/**
 * FileUploaded callback function
 * @param $uploadedFile UploadedFile
 */
function onFileUploaded($uploadedFile) {
  global $galleryPath;
 
  $absGalleryPath = realpath($galleryPath) . DIRECTORY_SEPARATOR;
  $absThumbnailsPath = $absGalleryPath . 'Thumbnails' . DIRECTORY_SEPARATOR;
 
  if ($uploadedFile->getPackage()->getPackageIndex() == 0 && $uploadedFile->getIndex() == 0) {
    initGallery($absGalleryPath, $absThumbnailsPath);
  }
 
  $originalFileName = $uploadedFile->getSourceName();
 
  $files = $uploadedFile->getConvertedFiles();
 
  // Save source file
  $sourceFile = $files[0];
  /* @var $sourceFile ConvertedFile */
  if ($sourceFile) {
    $sourceFileName = getSafeFileName($absGalleryPath, $originalFileName);
    $sourceFile->moveTo($absGalleryPath . $sourceFileName);
  }
 
  //Load XML file which will keep information about files (image dimensions, description, etc).
  //XML is used solely for brevity. In real-life application most likely you will use database instead.
  $descriptions = new DOMDocument('1.0', 'utf-8');
  $descriptions->load($absGalleryPath . 'files.xml');
 
  //Save file info.
  $xmlFile = $descriptions->createElement('file');
  $xmlFile->setAttribute('name', $originalFileName);
  $xmlFile->setAttribute('source', $sourceFileName);
  $xmlFile->setAttribute('description', $uploadedFile->getDescription());
  $xmlFile->setAttribute('originalHeight', $uploadedFile->getSourceHeight());
  $xmlFile->setAttribute('originalWidth', $uploadedFile->getSourceWidth());

// HOW DO I MAKE THIS VALID...

// First Image Converter
  $xmlFile->setAttribute('new0Height', $uploadedFile->getHeight()); <----- wrong
  $xmlFile->setAttribute('new0Width', $uploadedFile->getWidth()); <----- wrong

// Second Image Converter
  $xmlFile->setAttribute('new1Height', $uploadedFile->getHeight()); <----- wrong
  $xmlFile->setAttribute('new1Width', $uploadedFile->getWidth()); <----- wrong

// How do i reference the converted height/width for each variation (I upload two) from the $files variable?

  $descriptions->documentElement->appendChild($xmlFile);
  $descriptions->save($absGalleryPath . 'files.xml');
}
 
$uh = new UploadHandler();
$uh->setFileUploadedCallback('onFileUploaded');
$uh->processRequest();