<?php
    function go() {
        $starttime = round(microtime(true),2);
        $socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
        socket_bind($socket, '192.168.1.2', 4000);
        socket_listen($socket, 10);
        socket_set_option($socket, SOL_SOCKET, SO_REUSEADDR, 1);
        while(true){ //Бесконечный цикл ожидания подключений
            $accept = @socket_accept($socket); //Зависаем пока не получим ответа
            if($accept === false) {
                echo "Error: ".socket_strerror(socket_last_error())."<br />\r\n";
                usleep(100);
            }


            socket_write($accept, "Привет");


        }
    }
    $getMsg = getallheaders()['Sec-WebSocket-Key'];
    $guid = "258EAFA5-E914-47DA-95CA-C5AB0DC85B11";
    $sec_websocket_accept = trim(substr($getMsg, strpos($getMsg, 'Sec-WebSocket-Key:') + 18)).$guid;
    $sec_websocket_accept = sha1($sec_websocket_accept, true);
    $sec_websocket_accept = base64_encode($sec_websocket_accept);
    header("HTTP/1.1 101 Switching Protocols");
    header("Upgrade: websocket");
    header("Connection: Upgrade");
    header("Sec-WebSocket-Accept: $sec_websocket_accept");
    header('Sec-WebSocket-Extensions: deflate-frame');
    header('Sec-WebSocket-Protocol: soap');

    $socket = go();
    if (isset($socket)) {
        echo "Closing connection... ";
        @socket_shutdown($socket);
        socket_close($socket);
        echo "OK <br />\r\n";
    }
?>