Set example from Kohana

gistfile1.txt

public function set($values, $value = NULL)
{
	if ($value)
	{
		// Normalise single field setting to multiple field setting
		$values = array($values => $value);
	}

	if ( ! $values)
		return $this;

	foreach ($values as $key => $value)
	{
		$this->_data[$key] = $value;
	}

	return $this;
}