// $url = 'http://yuncode.net';
$url = 'http://yuncode.net:80/php/sock.php?site=yuncode.net';
function HTTP_Post($URL,$data,$cookie, $referer="")
{

	// parsing the given URL
    $URL_Info=parse_url($URL);

	// Building referrer
    if($referer=="") // if not given use this script as referrer
        $referer="yuncode.net";

	// making string from $data
    foreach($data as $key=> $value)
    $values[]="$key=".urlencode($value);
    $data_string=implode("&",$values);

	// Find out which port is needed - if not given use standard (=80)
    if(!isset($URL_Info["port"]))
        $URL_Info["port"]=80;
	
	$request = '';
	// building POST-request:
    $request.="POST ".$URL_Info["path"]." HTTP/1.1\n";
    $request.="Host: ".$URL_Info["host"]."\n";
    $request.="Referer: $referer\n";
    $request.="Content-type: application/x-www-form-urlencoded\n";
    $request.="Content-length: ".strlen($data_string)."\n";
    $request.="Connection: close\n";

    $request.="Cookie:   $cookie\n";

    $request.="\n";
    $request.=$data_string."\n";

    $fp = fsockopen($URL_Info["host"],$URL_Info["port"]);
    fputs($fp, $request);
	$result = '';
    while(!feof($fp))
    {
        $result .= fgets($fp, 1024);
    }
    fclose($fp);

    return $result;
}

$data = array(
	'foo'=>'bar', 
	'baz'=>'boom', 
	'site'=>'yuncode.net', 
	'name'=>'nowa magic'); 
	
$cookie = '';
$referer = 'http://yuncode.net/';
	
echo HTTP_Post($url, $data, $cookie, $referer);