server.php

<?php
// prevent the server from timing out
set_time_limit(0);

// include the web sockets server script (the server is started at the far bottom of this file)
require 'class.PHPWebSocket.php';

// when a client sends data to the server
function wsOnMessage($clientID, $message, $messageLength, $binary) {
	global $Server;
	$ip = long2ip( $Server->wsClients[$clientID][6] );

	//Send the message to everyone but the person who said it
	if ( sizeof($Server->wsClients) != 1 )
		foreach ( $Server->wsClients as $id => $client )
			if ( $id != $clientID )
				$Server->wsSend($id, $message);
}

// when a client connects
function wsOnOpen($clientID)
{
	global $Server;
	$ip = long2ip( $Server->wsClients[$clientID][6] );

	$Server->log( "$ip ($clientID) has connected." );

	// send a join notice to everyone but the person who joined
	foreach ( $Server->wsClients as $id => $client )
		if ( $id != $clientID )
			$Server->wsSend($id, "[CLIENT:JOINED] $clientID $ip");
		// send a list of active clients to a new one
		else {
			$clients = "";
			foreach ( $Server->wsClients as $id2 => $client2 )
				if ( $id2 != $clientID )
					$clients .= "$id2," . long2ip($client2[6]) . ";";
			$Server->wsSend($clientID, "[CLIENTS:LIST] $clients");
		}
}

// when a client closes or lost connection
function wsOnClose($clientID, $status) {
	global $Server;
	$ip = long2ip( $Server->wsClients[$clientID][6] );

	$Server->log( "$ip ($clientID) has disconnected." );

	//Send a user left notice to everyone in the room
	foreach ( $Server->wsClients as $id => $client )
		$Server->wsSend($id, "[CLIENT:LEFT] $clientID $ip");
}

// start the server
$Server = new PHPWebSocket();
$Server->bind('message', 'wsOnMessage');
$Server->bind('open', 'wsOnOpen');
$Server->bind('close', 'wsOnClose');
// for other computers to connect, you will probably need to change this to your LAN IP or external IP,
// alternatively use: gethostbyaddr(gethostbyname($_SERVER['SERVER_NAME']))
$Server->wsStartServer('127.0.0.1', 9300);

?>