original_string: public function get_range_by_index($rangeindex) {
          if (!isset($this->ranges[$rangeindex])) {
              return false;
          }
          return $this->ranges[$rangeindex];
      }
code: public function get_range_by_index($rangeindex) {
          if (!isset($this->ranges[$rangeindex])) {
              return false;
          }
          return $this->ranges[$rangeindex];
      }
code_tokens: public function get_range_by_index ( $ rangeindex ) { if ( ! isset ( $ this -> ranges [ $ rangeindex ] ) ) { return false ; } return $ this -> ranges [ $ rangeindex ] ; }
docstring: Returns range data by its index.
  
  @param int $rangeindex
  @return array|false Range data or false if the index is not part of the existing ranges.
docstring_tokens: Returns range data by its index .