Работа с сокетами

<?php
error_reporting(E_ALL);
 
echo "<h2>TCP/IP Connection</h2>\n";
 
/* Get the port for the WWW service. */
$service_port = getservbyname('telnet', 'tcp');
 
/* Get the IP address for the target host. */
$address = "192.168.0.106";
 
/* Create a TCP/IP socket. */
$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
if ($socket === false) {
    echo "socket_create() failed: reason: " . socket_strerror(socket_last_error()) . "\n";
} else {
    echo "OK.\n";
}
 
echo "Attempting to connect to '$address' on port '$service_port'...";
$result = socket_connect($socket, $address, $service_port);
if ($result === false) {
    echo "socket_connect() failed.\nReason: ($result) " . socket_strerror(socket_last_error($socket)) . "\n";
} else {
    echo "OK.\n";
}
 
$in = "пароль\n";
$in .= "en\n";
$in .= "пароль\n";
$in .= "conf t\n";
$in .= "int fa 1/0\n";
$in .= "shut\n";
$in .= "end\n";
$in .= "exit\n";
$out = '';
 
socket_write($socket, $in, strlen($in));
 
 
echo "Reading response:";
while ($out = socket_read($socket, 2048)) {
     echo $out;
}
 
echo "Closing socket...";
socket_close($socket);
echo "OK.\n\n";
 
 
?>