Box\Spout\Reader\AbstractReader::getStreamWrapperScheme PHP Метод

    protected function getStreamWrapperScheme($filePath)
    {
        $streamScheme = null;
        if (preg_match('/^(\\w+):\\/\\//', $filePath, $matches)) {
            $streamScheme = $matches[1];
        }
        return $streamScheme;
    }