(PECL pecl_http >= 0.25.0)
HttpQueryString::xlate — Change query strings charset
Converts the query string from the source encoding ie to the target encoding oe.
Don't use any character set that can contain NUL bytes like UTF-16.
Note: This method requires ext/iconv to be enabled and loaded.
input encoding
output encoding
如果成功则返回 TRUE，失败则返回 FALSE。