/**
* Check if there is a current result item
* after calls to rewind() or next()
* Implements Iterator
*
* @return bool
*/
public function valid()
{
if (isset($this->cache[$this->current])) {
return true;
}
return $this->iterator->valid();
}
/**
* Check if there is a current result item
* after calls to rewind() or next()
* Implements Iterator
*
* @return boolean
*/
public function valid()
{
if (isset($this->_cache[$this->_current])) {
return true;
} else {
return $this->_iterator->valid();
}
}
