public static function decDocument($data, &$offset)
{
$docLen = Util::unpack('Vlen', $data, $offset, 4)['len'] - 5;
// subtract len. and null-terminator
$document = [];
$parsedLen = 0;
while (0 !== ord($data[$offset])) {
$elmLen = $offset;
$elm = self::decElement($data, $offset);
$parsedLen += $offset - $elmLen;
$document[$elm[0]] = $elm[1];
}
if ($docLen !== $parsedLen) {
throw new \RuntimeException(sprintf('Document length doesn\'t match total size of parsed elements (%d:%d)', $docLen, $parsedLen));
}
$offset++;
// add one byte for document nul-terminator
return $document;
}
