/**
* caching the results will cause the script to use more memory but less
* cpu (should also perform quicker) results should always be the same
* regardless of cache
*
* @param boolean $cache Do we want to cache results
*/
public function __construct($cache = false)
{
parent::__construct();
$this->position = 0;
$this->results = array();
$this->cache = $cache;
}
