NativeFileSessionHandler::__construct

public function __construct(array $options)
{
	$savePath = $options['savePath'] ?? null;
	if ($savePath === null)
	{
		$savePath = ini_get('session.save_path');
	}

	$baseDir = $savePath;
	if ($count = substr_count($savePath, ';'))
	{
		if ($count > 2)
		{
			throw new ArgumentException('Invalid format for savePath', 'savePath');
		}
		$baseDir = ltrim(strrchr($savePath, ';'), ';');
	}

	if ($baseDir && !is_dir($baseDir) && !@mkdir($baseDir, 0777, true) && !is_dir($baseDir))
	{
//			throw new SystemException("Native file session handler was not able to create directory "{$baseDir}".");
	}

	ini_set('session.save_handler', 'files');
	ini_set('session.save_path', $savePath);
}