What difference with socket in windows using php? - php

Question

I have wrote one app in php which uses sockets. Suddenly there was a need to run it on windows, before this it was only on linux with no problems.
Currently problem is in socket_recv function which is used like $bytes = #socket_recv($socket, $data, 2048, MSG_DONTWAIT);. First of all on the windows there isn't any MSG_DONTWAIT constant as i get nocite about it. I found a small fix for it like:
if (!defined('MSG_DONTWAIT'))
define('MSG_DONTWAIT', 0x40);
Then it says:
Warning: socket_recv(): unable to read from socket [0]: The operation completed
successfully.
After it i decided to ask may be there is some difference with work with sockets on Windows and Linux?

Answer 1

I believe there is a difference when you create socket in windows as opposed to linux.
Try something like this:
<?php
// Init
error_reporting(E_ALL);
set_time_limit(0);
ob_implicit_flush();
$address = '127.0.0.1';
$port = 10000;
// On Windows we need to use AF_INET
$domain = (strtoupper(substr(PHP_OS, 0, 3)) == 'WIN' ? AF_INET : AF_UNIX);
// Create socket
if (($sock = socket_create($domain, SOCK_STREAM, SOL_TCP)) === false) {
echo "socket_create() failed: reason: " . socket_strerror(socket_last_error()) . "\n";
}
// Bind socket to port
if (socket_bind($sock, $address, $port) === false) {
echo "socket_bind() failed: reason: " . socket_strerror(socket_last_error($sock)) . "\n";
}
// start listening
if (socket_listen($sock, 5) === false) {
echo "socket_listen() failed: reason: " . socket_strerror(socket_last_error($sock)) . "\n";
}
do {
if (($msgsock = socket_accept($sock)) === false) {
echo "socket_accept() failed: reason: " . socket_strerror(socket_last_error($sock)) . "\n";
break;
}
/* Send instructions. */
$msg = "\nWelcome to the PHP Test Server. \n" .
"To quit, type 'quit'. To shut down the server type 'shutdown'.\n";
socket_write($msgsock, $msg, strlen($msg));
do {
if (false === ($buf = socket_read($msgsock, 2048, PHP_NORMAL_READ))) {
echo "socket_read() failed: reason: " . socket_strerror(socket_last_error($msgsock)) . "\n";
break 2;
}
if (!$buf = trim($buf)) {
continue;
}
if ($buf == 'quit') {
break;
}
if ($buf == 'shutdown') {
socket_close($msgsock);
break 2;
}
$talkback = "PHP: You said '$buf'.\n";
socket_write($msgsock, $talkback, strlen($talkback));
echo "$buf\n";
} while (true);
socket_close($msgsock);
} while (true);
socket_close($sock);
?>