Im trying to figure out the problem with a very simple client/server
program written in PHP.
Ill post the php code of the server and the client, both are based on
the annotated PHP Help.
The server will only write a message to a cliente every time one
connects to it.
Server Code:
<?
$direccion = '0.0.0.0';
$puerto = 4321;
if (($serverSocket = socket_create (AF_INET, SOCK_STREAM, 0)) < 0) {
echo socket_strerror ($serverSocket) . "\n";
}
if (($retorno = socket_bind ($serverSocket, $direccion, $puerto)) < 0)
{
echo socket_strerror ($retorno) . "\n";
}
if (($retorno = socket_listen ($serverSocket, 1)) < 0) {
echo socket_strerror ($retorno) . "\n";
}
do {
if (($cliente = socket_accept($serverSocket)) < 0) {
echo socket_strerror ($cliente) . "\n";
break;
}
$mensaje = "bienvenido al server\n";
socket_write($cliente, $mensaje, strlen($mensaje));
//socket_close ($msgsock);
} while (true);
socket_close ($sock);
?>
Client Code:
<?php
error_reporting (E_ALL);
echo "<h2>TCP/IP Connection</h2>\n";
$service_port = 4321;
$address = '127.0.0.1';
/* Create a TCP/IP socket. */
$socket = socket_create (AF_INET, SOCK_STREAM, 0);
if ($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";
}
$out = '';
echo "Reading response:\n\n";
while ($out = socket_read ($socket, 2048)) {
echo $out;
}
echo "Closing socket...";
socket_close ($socket);
echo "OK.\n\n";
?>
Both pages are uploaded to the web, and both are in the same folder:
/server.php and /client.php. When I try to access the server page, it
stays waiting, and in a different client I try to access the client
page and it also stays waiting, without doing anything.
Anybody has any ideas what the problema is?
Thanks in advance,
Daniel Kawer
