Hi Antonio,

I am doing the same thing, I'll just provide my code and you can try
whether this will work at your end. I don't fiddle around with the headers,
so maybe there's your showstopper.

I POST XML to an url and get XML back, so I use a function with the XML to
send as a parameter:

function xml_anfrage($fxml) { // post XML to URL and return XML from there
        $xmlurl = "http://someserver.com/someurl.asp";
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL,$xmlurl); // URL setzen
        curl_setopt($ch, CURLOPT_FAILONERROR, 1);
        curl_setopt($ch, CURLOPT_TIMEOUT, 20); // Timeout after 20 secs
        curl_setopt($ch, CURLOPT_POST, 1); // set POST method
        curl_setopt($ch, CURLOPT_POSTFIELDS, $fxml); // data to POST, unencoded
        curl_setopt($ch, CURLOPT_RETURNTRANSFER,1); // Put result into variable
instead of displaying in browser
        $data = curl_exec($ch); // do it
        curl_close($ch);
        return $data;
}

This function would be used like this:

$xml = "<?xml
version=\"1.0\"?"."><Request><Mandatnummer>".$fhnr."</Mandatnummer></Request>";
$resultxml = xml_anfrage($xml);

Look at the escaping of the XML header, this might solve your encoding
issue, because I found this was the only variant to make it work. The
results include ISO-8859-15 characters which translate just fine if you
treat them correctly in your PHP code. cURL will work just fine with those.

Best regards,

Thorsten

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