(PECL pecl_http >= 0.10.0)
HttpRequestPool::attach — Attach HttpRequest
$request
Attach an HttpRequest object to this HttpRequestPool.
Set all options prior attaching!
request
an HttpRequest object not already attached to any HttpRequestPool object
成功时返回 TRUE， 或者在失败时返回 FALSE。
TRUE
FALSE
Throws HttpInvalidParamException, HttpRequestException, HttpRequestPoolException, HttpEncodingException.