(PECL pecl_http >= 0.10.0)
HttpRequest::setOptions — Set options
Set the request options to use.
可用参数的完整列表见 http_get() 函数和 选项。
an associative array, which values will overwrite the currently set request options; if empty or omitted, the options of the HttpRequest object will be reset
如果成功则返回 TRUE,失败则返回 FALSE。