original_string: public function getSerial()
      {
          if (empty($this->serial)) {
              $this->serial = sha1(serialize($this->getAll()));
          }
          return $this->serial;
      }
code: public function getSerial()
      {
          if (empty($this->serial)) {
              $this->serial = sha1(serialize($this->getAll()));
          }
          return $this->serial;
      }
code_tokens: public function getSerial ( ) { if ( empty ( $ this -> serial ) ) { $ this -> serial = sha1 ( serialize ( $ this -> getAll ( ) ) ) ; } return $ this -> serial ; }
docstring: Returns a SHA-1 signature for the entire configuration object
  that uniquely identifies that particular configuration
  
  @return string
docstring_tokens: Returns a SHA - 1 signature for the entire configuration object that uniquely identifies that particular configuration