stream error

hi guys

excuse my bad english

i want to make a flash webradio player and i need follow code to connect to shoutcast server but something is wrong with it.

can someone tell me where the error is?

thx

<?php
$streamname = "85.25.150.228"; // Server (Host)
$port = "9210"; // Port des Streams
$stream_quality=192; // Kbit/s


$buffer_time=15; // Die Anzahl der Minuten, die der Stream Puffern soll
$path = "/"; 
$stream_quality_kbytes=$stream_quality/8;
$stream_quality_kbytes_per_minute=$stream_quality*60;
$content_length=$buffer_time*1024*$stream_quality_kbytes_per_minute;
$length_header="Content-length: ".$content_length;
header("Content-type: audio/mpeg");
header($length_header);
$sock = fsockopen($streamname,$port);
fputs($sock, "GET $path HTTP/1.0\r\n");
fputs($sock, "Host: $streamname\r\n");
fputs($sock, "User-Agent: WinampMPEG/2.8\r\n");
fputs($sock, "Accept: */*\r\n");
fputs($sock, "Icy-MetaData:0\r\n");
fputs($sock, "Connection: close\r\n\r\n");
fpassthru($sock);
fclose($sock);
?>