(PECL pecl_http >= 0.10.0)
HttpRequest::setQueryData — Set query data
Set the URL query parameters to use, overwriting previously set query parameters.
Affects any request types.
query_data
a string or associative array parameter containing the pre-encoded query string or to be encoded query fields; if empty, the query data will be unset
成功时返回 TRUE， 或者在失败时返回 FALSE。