code: protected function findCellTextValues(\SimpleXMLElement $table_row)
      {
          $row = [];
          foreach ($table_row->children() as $child) {
              /** @var \SimpleXMLElement $child */
              $row[] = $this->parseCellText($child);
  
              $colspan = (int) $child['colspan'];
              for ($i = 1; $i < $colspan; $i++) {
                  $row[] = '...';
              }
          }
  
          return $row;
      }
docs: @param \SimpleXMLElement $table_row
  
  @return string[]