code/libraries/joomlatools/library/user/session/handler/database.php
public function destroy($session_id)
    {
        $result = false;

        if ($this->getTable()->isConnected())
        {
            $row = $this->_table->select($session_id, KDatabase::FETCH_ROW);

            if (!$row->isNew()) {
                $result = $row->delete();
            }
        }

        return $result;
    }
public function destroy($session_id)
    {
        $result = false;

        if ($this->getTable()->isConnected())
        {
            $row = $this->_table->select($session_id, KDatabase::FETCH_ROW);

            if (!$row->isNew()) {
                $result = $row->delete();
            }
        }

        return $result;
    }
public function destroy ( $ session_id ) { $ result = false ; if ( $ this -> getTable ( ) -> isConnected ( ) ) { $ row = $ this -> _table -> select ( $ session_id , KDatabase :: FETCH_ROW ) ; if ( ! $ row -> isNew ( ) ) { $ result = $ row -> delete ( ) ; } } return $ result ; }
Destroy the data for a particular session identifier in the session handler backend

@param   string  $session_id  The session identifier
@return  boolean  True on success, false otherwise
Destroy the data for a particular session identifier in the session handler backend