(PECL pecl_http >= 0.10.0)
HttpRequestPool::attach — Attach HttpRequest
Attach an HttpRequest object to this HttpRequestPool.
Set all options prior attaching!
an HttpRequest object not already attached to any HttpRequestPool object
如果成功则返回 TRUE,失败则返回 FALSE。
Throws HttpInvalidParamException, HttpRequestException, HttpRequestPoolException, HttpEncodingException.