/**
* Flatten a multi-dimensional associative array with dots.
*
* @param array $config
* @param string $prepend
* @return array
*/
public static function flatten(array $config, $prepend = '')
{
$results = array();
foreach ($config as $key => $value) {
if (is_array($value)) {
$results = array_merge($results, Config::flatten($value, $prepend . $key . '.'));
} else {
$results[$prepend . $key] = $value;
}
}
return $results;
}
