Php WebSockets服务器工作异常正常

我有一个简单的php服务器。他工作很奇怪。 仅成功建立了10次连接中的1次。 当我尝试在握手后立即将数据写入套接字时，连接会断开。有些时候它是有效的，但大多数情况下是无效的，我不明白为什么

服务器脚本

#!/usr/bin/env php
<?php
error_reporting(E_WARNING);
$socket = stream_socket_server("tcp://0.0.0.0:8000", $errno, $errstr);

if (!$socket) {
    die("$errstr ($errno)\n");
}
$connects = array();
while (true) {
    //формируем массив прослушиваемых сокетов:
    $read = $connects;
    $read []= $socket;
    $write = $except = null;

    if (!stream_select($read, $write, $except, null)) {//ожидаем сокеты доступные для чтения (без таймаута)
        break;
    }

    if (in_array($socket, $read)) {//есть новое соединение
        //принимаем новое соединение и производим рукопожатие:
        if (($connect = stream_socket_accept($socket, -1)) && $info = handshake($connect)) {
            if(intval(substr($info["uri"],1))>0)
            $conlist[$info["port"]]=intval(substr($info["uri"],1));
            onOpen($connect, $info);
            $connects[$info["port"]] = $connect;//добавляем его в список необходимых для обработки
        }
        unset($read[ array_search($socket, $read) ]);
    }

    foreach($read as $k=>$connect) {//обрабатываем все соединения
        $data = fread($connect, 8192);

        if (!$data) { //соединение было закрыто
            onClose($connect);//вызываем пользовательский сценарий
            fclose($connect);
            unset($connects[ array_search($connect, $connects) ]);
            unset($conlist[$k]);
            continue;
        }

        onMessage($connect,$data,$connects,$conlist);//вызываем пользовательский сценарий
    }
}

fclose($server);

function handshake($connect) {
    $info = array();

    $line = fgets($connect,4096);
    $header = explode(' ', $line);
    $info['method'] = $header[0];
    $info['uri'] = $header[1];
    //считываем заголовки из соединения
    while ($line = rtrim(fgets($connect,4096))) {
        $info['source'].=$line;
        if (preg_match('/\A(\S+): (.*)\z/', $line, $matches)) {
            $info[$matches[1]] = $matches[2];
        } else {
            break;
        }
    }

    $address = explode(':', stream_socket_get_name($connect, true)); //получаем адрес клиента
    $info['ip'] = $address[0];
    $info['port'] = $address[1];

    if (empty($info['Sec-WebSocket-Key'])) {
        return false;
    }

    //отправляем заголовок согласно протоколу вебсокета
    $SecWebSocketAccept = base64_encode(pack('H*', sha1($info['Sec-WebSocket-Key'] . '258EAFA5-E914-47DA-95CA-C5AB0DC85B11')));
    $upgrade = "HTTP/1.1 101 Switching Protocols\r\n" .
        "Upgrade: websocket\r\n" .
        "Connection: Upgrade\r\n" .
        "Sec-WebSocket-Accept: ".$SecWebSocketAccept."\r\n" .
        "Sec-WebSocket-Protocol: chat\r\n\r\n";
    fwrite($connect, $upgrade);

    return $info;
}

function encode($payload, $type = 'text', $masked = false)
{
    $frameHead = array();
    $payloadLength = strlen($payload);

    switch ($type) {
        case 'text':
            // first byte indicates FIN, Text-Frame (10000001):
            $frameHead[0] = 129;
            break;

        case 'close':
            // first byte indicates FIN, Close Frame(10001000):
            $frameHead[0] = 136;
            break;

        case 'ping':
            // first byte indicates FIN, Ping frame (10001001):
            $frameHead[0] = 137;
            break;

        case 'pong':
            // first byte indicates FIN, Pong frame (10001010):
            $frameHead[0] = 138;
            break;
    }

    // set mask and payload length (using 1, 3 or 9 bytes)
    if ($payloadLength > 65535) {
        $payloadLengthBin = str_split(sprintf('%064b', $payloadLength), 8);
        $frameHead[1] = ($masked === true) ? 255 : 127;
        for ($i = 0; $i < 8; $i++) {
            $frameHead[$i + 2] = bindec($payloadLengthBin[$i]);
        }
        // most significant bit MUST be 0
        if ($frameHead[2] > 127) {
            return array('type' => '', 'payload' => '', 'error' => 'frame too large (1004)');
        }
    } elseif ($payloadLength > 125) {
        $payloadLengthBin = str_split(sprintf('%016b', $payloadLength), 8);
        $frameHead[1] = ($masked === true) ? 254 : 126;
        $frameHead[2] = bindec($payloadLengthBin[0]);
        $frameHead[3] = bindec($payloadLengthBin[1]);
    } else {
        $frameHead[1] = ($masked === true) ? $payloadLength + 128 : $payloadLength;
    }

    // convert frame-head to string:
    foreach (array_keys($frameHead) as $i) {
        $frameHead[$i] = chr($frameHead[$i]);
    }
    if ($masked === true) {
        // generate a random mask:
        $mask = array();
        for ($i = 0; $i < 4; $i++) {
            $mask[$i] = chr(rand(0, 255));
        }

        $frameHead = array_merge($frameHead, $mask);
    }
    $frame = implode('', $frameHead);

    // append payload to frame:
    for ($i = 0; $i < $payloadLength; $i++) {
        $frame .= ($masked === true) ? $payload[$i] ^ $mask[$i % 4] : $payload[$i];
    }

    return $frame;
}

function decode($data)
{
    $unmaskedPayload = '';
    $decodedData = array();

    // estimate frame type:
    $firstByteBinary = sprintf('%08b', ord($data[0]));
    $secondByteBinary = sprintf('%08b', ord($data[1]));
    $opcode = bindec(substr($firstByteBinary, 4, 4));
    $isMasked = ($secondByteBinary[0] == '1') ? true : false;
    $payloadLength = ord($data[1]) & 127;

    // unmasked frame is received:
    if (!$isMasked) {
        return array('type' => '', 'payload' => '', 'error' => 'protocol error (1002)');
    }

    switch ($opcode) {
        // text frame:
        case 1:
            $decodedData['type'] = 'text';
            break;

        case 2:
            $decodedData['type'] = 'binary';
            break;

        // connection close frame:
        case 8:
            $decodedData['type'] = 'close';
            break;

        // ping frame:
        case 9:
            $decodedData['type'] = 'ping';
            break;

        // pong frame:
        case 10:
            $decodedData['type'] = 'pong';
            break;

        default:
            return array('type' => '', 'payload' => '', 'error' => 'unknown opcode (1003)');
    }

    if ($payloadLength === 126) {
        $mask = substr($data, 4, 4);
        $payloadOffset = 8;
        $dataLength = bindec(sprintf('%08b', ord($data[2])) . sprintf('%08b', ord($data[3]))) + $payloadOffset;
    } elseif ($payloadLength === 127) {
        $mask = substr($data, 10, 4);
        $payloadOffset = 14;
        $tmp = '';
        for ($i = 0; $i < 8; $i++) {
            $tmp .= sprintf('%08b', ord($data[$i + 2]));
        }
        $dataLength = bindec($tmp) + $payloadOffset;
        unset($tmp);
    } else {
        $mask = substr($data, 2, 4);
        $payloadOffset = 6;
        $dataLength = $payloadLength + $payloadOffset;
    }

    /**
     * We have to check for large frames here. socket_recv cuts at 1024 bytes
     * so if websocket-frame is > 1024 bytes we have to wait until whole
     * data is transferd.
     */
    if (strlen($data) < $dataLength) {
        return false;
    }

    if ($isMasked) {
        for ($i = $payloadOffset; $i < $dataLength; $i++) {
            $j = $i - $payloadOffset;
            if (isset($data[$i])) {
                $unmaskedPayload .= $data[$i] ^ $mask[$j % 4];
            }
        }
        $decodedData['payload'] = $unmaskedPayload;
    } else {
        $payloadOffset = $payloadOffset - 4; 
        $decodedData['payload'] = substr($data, $payloadOffset);
    }

    return $decodedData;
}

//пользовательские сценарии:

function onOpen($connect, $info) {
    echo "open\n";
    fwrite($connect, encode('{"name":"Added new order","content":" "}'."\r\n"));

}

function onClose($connect) {
    echo "close\n";
}

function onMessage($connect, $data, $connects, $conlist) {
    $data=decode($data);
    echo $data["payload"]."\n";
    $v=json_decode($data["payload"],"array");
    if($v["orgid"])
    foreach($connects as $con){
        fwrite($con, encode('{"name":"Added new order","content":"'.$v["message"].'"}'));
    }

}

#/usr/bin/env-php
<html>
<body>
<script>
function log(val){
var d=document.getElementById("test");
d.innerHTML=d.innerHTML+"<br />"+val;
console.log(val);
}
var ws = null;
document.addEventListener("beforeunload", function() {
    ws.close();
});
document.addEventListener("DOMContentLoaded", function() {
    'use strict';
    function start(){

        ws = new WebSocket("ws://localhost:8000/2");
        ws.onopen = function(){
            log("Connection established.");
            ws.send("test");
        }
        ws.onmessage = function(event) {
            log("Resived " + event.data);
        }
        ws.onclose = function(event,r){
            log("Closed by forain host."); 
            log("Reconnecting");
            log(event);
            check();
        }
    }

    function check(){
        log(ws.readyState);ws.send("test");
        //if(!ws || ws.readyState == 3) start();
    }

    start();
    //setInterval(check, 3000);
});
</script>
<input type="button" value="clear" onclick='document.getElementById("test").innerHTML=""'/>
<div id="test"></div>
</body>
</html>