socket Connection: Close

$service_port = getservbyname('www', 'tcp');
$address = gethostbyname('site.ru');
$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
$result = socket_connect($socket, $address, $service_port);
$in = "GET /pop3.php HTTP/1.1\r\n";
$in .= "Host: site.ru\r\n";
$in .= "Connection: Close\r\n\r\n";
socket_write($socket, $in, strlen($in));
socket_close($socket);