original_string: public function getServerLogoutURL()
      {
          // the URL is build only when needed
          if ( empty($this->_server['logout_url']) ) {
              $this->_server['logout_url'] = $this->_getServerBaseURL().'logout';
          }
          return $this->_server['logout_url'];
      }
code: public function getServerLogoutURL()
      {
          // the URL is build only when needed
          if ( empty($this->_server['logout_url']) ) {
              $this->_server['logout_url'] = $this->_getServerBaseURL().'logout';
          }
          return $this->_server['logout_url'];
      }
code_tokens: public function getServerLogoutURL ( ) { // the URL is build only when needed if ( empty ( $ this -> _server [ 'logout_url' ] ) ) { $ this -> _server [ 'logout_url' ] = $ this -> _getServerBaseURL ( ) . 'logout' ; } return $ this -> _server [ 'logout_url' ] ; }
docstring: This method is used to retrieve the logout URL of the CAS server.
  
  @return string logout URL.
docstring_tokens: This method is used to retrieve the logout URL of the CAS server .