/**
* Implentation of the Iterator SPL class for Rewind(),
* prepares the whole datasource for an entirely new iterator operation
*
* @access public
*/
public function rewind()
{
$this->datasource->rewind();
//Process the transformers
if ($this->valid()) {
$this->transformedData = $this->transform($this->datasource->current(), $this->datasource->key());
}
}
/**
* Return the key of the current element.
*
* @return mixed
*/
public function key()
{
return $this->_iterator->key();
}
/**
* Returns the key of the current offset
*
* @return Mixed
*/
function key()
{
return isset($this->offset) ? $this->inner->key() : NULL;
}
/**
* Implentation of the Iterator SPL class for Key(),
* returns the current element's identification of the data source
* Returns null if nothing found
*
* @access public
*
* @return mixed Value.
*/
public function key()
{
return $this->datasource->key();
}
public function key()
{
return $this->input->key();
}
/**
* Example of applying a callback to capitalize the first letter.
*
* Note that you must return TRUE from the callback function to continue
* iterating. This can be useful if you wish to stop iteration under
* certain conditions.
*
* @param Iterator $it
* @return bool
*/
function addDbPrefix(Traversable $it, $prefix = 'test')
{
echo $it[$it->key()] = $prefix . '_' . $it->current();
echo PHP_EOL;
return true;
}
