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

@return string logout URL.
This method is used to retrieve the logout URL of the CAS server .