PHP FTP cURL Cross-Server RSS Mess lol... need help

Hello all... I am having a time with trying to get my cross-server, CMS/RSS feature working.

Basically, I need to write to a simple file on a different server... I know I can't use PHP fopen/fput over http to write a file, but I have researched and found some PHP/cURL and PHP/FTP code but I still haven't been able to make it work.

Does anyone know how to do this? Here is the current code I am working with:

$file = "http://".$url."/rss_holder.php";
 
$c = curl_init();
curl_setopt($c, CURLOPT_URL, "http://".$url."/rss_holder.php");
curl_setopt($c, CURLOPT_USERPWD, "user:pass");
curl_setopt($c, CURLOPT_RETURNTRANSFER, true);
curl_setopt($c, CURLOPT_PUT, true);
curl_setopt($c, CURLOPT_INFILESIZE, filesize($file));
 
$fp = fopen($file, "r");
curl_setopt($c, CURLOPT_INFILE, $fp);
 
curl_exec($c);
 
curl_close($c);
fclose($fp); 

Code (markup):

As you can see with this code, I am trying to write to a file (on a separate server) the RSS Feeds code by looping through a record set from MySQL:

   $curl = curl_init();
    $fp = fopen("http://www".$url."/rss_holder.php", "w");

  while($row2=mysql_fetch_array($result2))
  	{
		$fp = "if($q==".$row2['id'].")\n";
		$fp .= "{\n";
		$fp .= "$xml=(".$row2['feed_url'].")\n";
		$fp .= "}\n";
}
    curl_setopt($curl, CURLOPT_FILE, $fp);

    curl_exec ($curl);
    curl_close ($curl);

Code (markup):

I am getting errors like:

failed to open stream: HTTP wrapper does not support writeable connections in etc....

So I know you will probably look at this and instantly see what's wrong. I really appreciate you taking the time to post a solution or any advice. Thanks!
Mitch

 

I figured things out... here's what I ended up using:

$contents = "This is a test file\nTesting 1,2,3..";
		
$tempHandle = fopen('php://temp', 'r+');
fwrite($tempHandle, $contents);
rewind($tempHandle);        
 			
$conn = ftp_connect("ftp.server.com") or die("Could not connect");
ftp_login($conn,"user","pass");
echo ftp_fput($conn,"/someurl.com/target.txt",$tempHandle,FTP_ASCII);
ftp_close($conn);

Code (markup):

Works excellent...