public static function convertStringHeadersToArray($headers)
    {
        $lines = explode("\r\n", $headers);
        $headers = [];
        foreach ($lines as $line) {
            if (strpos($line, ':')) {
                $headerParts = explode(':', $line);
                $headers[$headerParts[0]] = trim(implode(':', array_slice($headerParts, 1)));
            }
        }
        return $headers;
    }