Posting an XML document to a strange server

[deft]

I'm trying to use fsockopen(), fwrite(), etc. to post an XML document to a server in a special way.  It's the server which delivers wap-push messages to our cell phones.  I took the example code for using fsockopen() right from php.net and tried to adapt it but I can't get it to post properly.

 

I do at least get connected to the server and get error messages from it.  Mostly I've gotten 400; bad request.  I think its' because the headers and XML document are not making it across as they should.  Here's what I'm using;

 

<?php
$fp = fsockopen("atlsnup2.adc.nexteldata.net", 4445, $errno, $errstr, 999);
if (!$fp) {
    echo "$errstr ($errno)<br />\n";
} else {

$out = "POST /ntfn/add HTTP/1.0\r\n";
$out .= "Accept: text\r\n";
$out .= "Content-type: application/vnd.uplanet.alert\r\n";
$out .= "Content-Length: 191\r\n";
$out .= "x-up-upnotifyp-version: upnotifyp/3.0\r\n";
$out .= "x-up-subno: 1132666310-43947622_atlsnup2.adc.nexteldata.net\r\n";
$out .= "x-up-ntfn-ttl: 0\r\n";
$out .= "x-up-ntfn-channel: push\r\n";
$out .= "Content-Location: http://wap.example.com/apage4u.wml\r\n";
$out .= "\r\n";
$out .= "<?xml version=\"1.0\"?>\r\n";
$out .= "<!DOCTYPE ALERT \nPUBLIC \"-//PHONE.COM//DTD ALERT 1.0//EN\" \"http://www.phone.com/dtd/alert1.xml\">";
$out .= "</xml>\r\n";

fwrite($fp, $out);

    while (!feof($fp)) {
        echo fgets($fp, 128);
    }
    fclose($fp);
}
?> 

 

I got the instructions for what to post from the phone company's site.

 

Any help getting this to work would be greatly appreciated.