opensrs\Base::readHeader PHP Method

    private function readHeader($fh, $timeout = 5)
    {
        $header = array();
        /* HTTP/SSL connection method */
        $http_log = '';
        $line = fgets($fh, 4000);
        $http_log .= $line;
        if (!preg_match('/^HTTP\\/1.1 ([0-9]{0,3}) (.*)\\r\\n$/', $line, $matches)) {
            throw new Exception('oSRS Error - UNEXPECTED READ: Unable to parse HTTP response code. Please make sure IP is whitelisted in RWI.');
            return false;
        }
        $header['http_response_code'] = $matches[1];
        $header['http_response_text'] = $matches[2];
        while ($line != CRLF) {
            $line = fgets($fh, 4000);
            $http_log .= $line;
            if (feof($fh)) {
                throw new Exception('oSRS Error - UNEXPECTED READ: Error reading HTTP header.');
                return false;
            }
            $matches = explode(': ', $line, 2);
            if (sizeof($matches) == 2) {
                $header[trim(strtolower($matches[0]))] = $matches[1];
            }
        }
        $header['full_header'] = $http_log;
        return $header;
    }