<?php

error_reporting (E_ALL);

 

echo "<h2>TCP/IP Connection</h2>\n";

 

/* Получить порт для WWW-сервиса. */

$service_port = getservbyname ('www', 'tcp');

 

/* Получить IP-адрес для целевого хоста. */

$address = gethostbyname ('www.example.com');

 

/* Создать TCP/IP-сокет. */

$socket = socket_create (AF_INET, SOCK_STREAM, 0);

if ($socket < 0) {

    echo "socket_create() failed: reason: " . socket_strerror ($socket) . "\n";

} else {

    echo "OK.\n";

}

 

echo "Attempting to connect to '$address' on port '$service_port'...";

$result = socket_connect ($socket, $address, $service_port);

if ($result < 0) {

 echo "socket_connect() failed.\nReason: ($result) " . socket_strerror($result) . "\n";

} else {

    echo "OK.\n";

}

 

$in = "HEAD / HTTP/1.0\r\n\r\n";

$out = '';

 

echo "Sending HTTP HEAD request...";

socket_write ($socket, $in, strlen ($in));

echo "OK.\n";

 

echo "Reading response:\n\n";

while ($out = socket_read ($socket, 2048)) {

    echo $out;

}

 

echo "Closing socket...";

socket_close ($socket);

echo "OK.\n\n";

?>