curl CUSTOMREQUEST

I saw a post at http://www.php.net/manual/en/ref.curl.php where it says: "Using the customrequest for a complete post is wrong. Libcurl will add a partial url, the http version and the standard headers after the post data - while this works with a non-persistent connection and an apache web server, it may fail under different conditions" Does anybody know a bit more on this?? (I sent an e-mail to the one who posted it, but the address does not longer exist) I tested the following code and didn't experience any problem: <? $url = "http://www.mydomain.com"; $request = "GET / HTTP/1.1\r\n". "Host: www.mydomain.com\r\n\r\n"; $ch = curl_init(); curl_setopt ($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_HEADER, 1); curl_setopt($ch, CURLOPT_TIMEOUT, 15); curl_setopt ($ch,CURLOPT_CUSTOMREQUEST , $request); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); $reply = curl_exec($ch); curl_close ($ch); echo '<pre>'; echo $reply; ?> but using ngrep on a server of mine I can see this as the request: GET / HTTP/1.1. Host: www.mydomain.com. . / HTTP/1.1. Host: www.mydomain.com. Pragma: no-cache. Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, */*. may be this is what he's talking about when he says about the data libcurl will add? does anybody know under which circumstances may this fail?? thanks in advance, Juan