- gethostbyname: documentation ( source)
<?php
/*
* PHP Sockets - How to create a TCP/IP socket client
*/
echo "<h2>TCP/IP Connection</h2><br />";
/* Get the port for the WWW service. */
$service_port = 11000;
/* Get the IP address for the target host. */
$address = gethostbyname('ppp089210193030.access.hol.gr');
/* 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()) . "<br />";
} else {
echo "OK.<br />";
}
if (socket_bind($sock, $address, $port) === false) {
echo "socket_bind() failed: reason: " . socket_strerror(socket_last_error($sock)) . "\n";
}else {
echo "bind OK.<br />";
}
echo "Attempting to connect to '$address' on port '$service_port'...";
$result = socket_connect($socket, $address, $service_port);
if ($result === false) {
echo "socket_connect() failed.<br />Reason: ($result) " . socket_strerror(socket_last_error($socket)) . "<br />";
} else {
echo "OK.<br />";
}
$in = "HEAD / HTTP/1.1<br />";
$in .= "Host: www.example.com<br />";
$in .= "Connection: Close<br /><br />";
$out = '';
echo $in;
echo "Sending HTTP HEAD request...";
socket_write($socket, $in, strlen($in));
echo "OK.<br />";
/*
echo "Reading response:<br /><br />";
while ($out = socket_read($socket, 2048)) {
echo $out."<br /><br />";
}
*/
echo "Closing socket...";
socket_close($socket);
echo "OK.<br /><br />";
?>