original_string: public function read($id)
      {
          $value = Cache::read($id, $this->_options['config']);
  
          if (empty($value)) {
              return '';
          }
  
          return $value;
      }
code: public function read($id)
      {
          $value = Cache::read($id, $this->_options['config']);
  
          if (empty($value)) {
              return '';
          }
  
          return $value;
      }
code_tokens: public function read ( $ id ) { $ value = Cache :: read ( $ id , $ this -> _options [ 'config' ] ) ; if ( empty ( $ value ) ) { return '' ; } return $ value ; }
docstring: Method used to read from a cache session.
  
  @param string|int $id ID that uniquely identifies session in cache.
  @return string Session data or empty string if it does not exist.
docstring_tokens: Method used to read from a cache session .