// server state functions
	function wsStartServer($host, $port) {
		global $wsRead, $wsClientCount, $wsClientIPCount;
		if (isset($wsRead[0])) return false;

		if (!$wsRead[0] = socket_create(AF_INET, SOCK_STREAM, SOL_TCP)) {
			return false;
		}
		if (!socket_set_option($wsRead[0], SOL_SOCKET, SO_REUSEADDR, 1)) {
			socket_close($wsRead[0]);
			return false;
		}
		if (!socket_bind($wsRead[0], $host, $port)) {
			socket_close($wsRead[0]);
			return false;
		}
		if (!socket_listen($wsRead[0], 10)) {
			socket_close($wsRead[0]);
			return false;
		}

		$write = array();
		$except = array();

		$nextPingCheck = time() + 1;
		while (isset($wsRead[0])) {
			$changed = $wsRead;
			$result = socket_select($changed, $write, $except, 1);

			if ($result === false) {
				socket_close($wsRead[0]);
				return false;
			}
			elseif ($result > 0) {
				foreach ($changed as $clientID => $socket) {
					if ($clientID != 0) {
						// client socket changed
						$buffer = '';
						$bytes = @socket_recv($socket, $buffer, 4096, 0);

						if ($bytes === false) {
							// error on recv, remove client socket (will check to send close frame)
							wsSendClientClose($clientID, WS_STATUS_PROTOCOL_ERROR);
						}
						elseif ($bytes > 0) {
							// process handshake or frame(s)
							if (!wsProcessClient($clientID, $buffer, $bytes)) {
								wsSendClientClose($clientID, WS_STATUS_PROTOCOL_ERROR);
							}
						}
						else {
							// 0 bytes received from client, meaning the client closed the TCP connection
							wsRemoveClient($clientID);
						}
					}
					else {
						// listen socket changed
						$client = socket_accept($wsRead[0]);
						if ($client !== false) {
							// fetch client IP as integer
							$clientIP = '';
							$result = socket_getpeername($client, $clientIP);
							$result2 = socket_getpeername($client, $clientIP);
							$clientIP = ip2long($clientIP);



							$clientIP2 = 'test';

							if ($result !== false && $wsClientCount < WS_MAX_CLIENTS && (!isset($wsClientIPCount[$clientIP]) || $wsClientIPCount[$clientIP] < WS_MAX_CLIENTS_PER_IP)) {
								wsAddClient($client, $clientIP, $wsClientIPCount[$clientIP]);
							}
							else {
								socket_close($client);
							}
						}
					}
				}
			}

			if (time() >= $nextPingCheck) {
				wsCheckIdleClients();
				$nextPingCheck = time() + 1;
			}
		}

		return true; // returned when wsStopServer() is called
	}