lithium\storage\cache\adapter\Memcache::clear PHP Method

clear() public method

Internally keys are not removed but invalidated. Thus this operation doesn't actually free memory on the instance. The behavior and result when removing a single key during this process fails is unknown.
public clear ( ) : boolean
return boolean `true` on successful clearing, `false` otherwise.
    public function clear()
    {
        return $this->connection->flush();
    }