Neos\Flow\ResourceManagement\ResourceManager::getPublicPackageResourceUriByPath PHP Method

    public function getPublicPackageResourceUriByPath($path)
    {
        $this->initialize();
        list($packageKey, $relativePathAndFilename) = $this->getPackageAndPathByPublicPath($path);
        return $this->getPublicPackageResourceUri($packageKey, $relativePathAndFilename);
    }

 /**
  * Renders an <img> HTML tag for a filetype icon for a given Neos.Media's asset instance
  *
  * @param AssetInterface $file
  * @param integer|null $width
  * @param integer|null $height
  * @return string
  */
 public function render(AssetInterface $file, $width = null, $height = null)
 {
     $icon = FileTypeIconService::getIcon($file, $width, $height);
     $this->tag->addAttribute('src', $this->resourceManager->getPublicPackageResourceUriByPath($icon['src']));
     $this->tag->addAttribute('alt', $icon['alt']);
     if ($width !== null) {
         $this->tag->addAttribute('width', $width);
     }
     if ($height !== null) {
         $this->tag->addAttribute('height', $height);
     }
     return $this->tag->render();
 }