eZ\Publish\Core\Persistence\Legacy\Content\Language\MaskGenerator::extractLanguageIdsFromMask PHP Method

    public function extractLanguageIdsFromMask($languageMask)
    {
        $exp = 2;
        $result = array();
        // Decomposition of $languageMask into its binary components.
        while ($exp <= $languageMask) {
            if ($languageMask & $exp) {
                $result[] = $exp;
            }
            $exp *= 2;
        }
        return $result;
    }

 /**
  * Extracts a Tag object from $row.
  *
  * @param array $rows
  *
  * @return \Netgen\TagsBundle\SPI\Persistence\Tags\Tag[]
  */
 public function extractTagListFromRows(array $rows)
 {
     $tagList = array();
     foreach ($rows as $row) {
         $tagId = (int) $row['eztags_id'];
         if (!isset($tagList[$tagId])) {
             $tag = new Tag();
             $tag->id = (int) $row['eztags_id'];
             $tag->parentTagId = (int) $row['eztags_parent_id'];
             $tag->mainTagId = (int) $row['eztags_main_tag_id'];
             $tag->keywords = array();
             $tag->depth = (int) $row['eztags_depth'];
             $tag->pathString = $row['eztags_path_string'];
             $tag->modificationDate = (int) $row['eztags_modified'];
             $tag->remoteId = $row['eztags_remote_id'];
             $tag->alwaysAvailable = (int) $row['eztags_language_mask'] & 1 ? true : false;
             $tag->mainLanguageCode = $this->languageHandler->load($row['eztags_main_language_id'])->languageCode;
             $tag->languageIds = $this->languageMaskGenerator->extractLanguageIdsFromMask((int) $row['eztags_language_mask']);
             $tagList[$tagId] = $tag;
         }
         if (!isset($tagList[$tagId]->keywords[$row['eztags_keyword_locale']])) {
             $tagList[$tagId]->keywords[$row['eztags_keyword_locale']] = $row['eztags_keyword_keyword'];
         }
     }
     return array_values($tagList);
 }