/**
* Return document root
*
* @SuppressWarnings(PHPMD.Superglobals)
* @return string
*/
public static function getDocRoot()
{
$result = '.';
$root = Arr::key('DOCUMENT_ROOT', $_SERVER, true);
if ($root) {
$result = $root;
}
$result = FS::clean($result);
$result = FS::real($result);
if (!$result) {
$result = FS::real('.');
// @codeCoverageIgnore
}
return $result;
}