original_string: public function &get($idSite, $period)
      {
          if (!isset($this->data[$idSite][$period])) {
              $this->data[$idSite][$period] = $this->defaultRow;
          }
          return $this->data[$idSite][$period];
      }
code: public function &get($idSite, $period)
      {
          if (!isset($this->data[$idSite][$period])) {
              $this->data[$idSite][$period] = $this->defaultRow;
          }
          return $this->data[$idSite][$period];
      }
code_tokens: public function & get ( $ idSite , $ period ) { if ( ! isset ( $ this -> data [ $ idSite ] [ $ period ] ) ) { $ this -> data [ $ idSite ] [ $ period ] = $ this -> defaultRow ; } return $ this -> data [ $ idSite ] [ $ period ] ; }
docstring: Returns a reference to the data for a specific site & period. If there is
  no data for the given site ID & period, it is set to the default row.
  
  @param int $idSite
  @param string $period eg, '2012-01-01,2012-01-31'
docstring_tokens: Returns a reference to the data for a specific site & period . If there is no data for the given site ID & period it is set to the default row .