套接字 php 服务器不显示从安卓客户端发送的消息

嗨，我是这类东西的新手，但这就是我想做的。

我正在尝试实现一个聊天应用程序，用户将在网站用户发送消息后立即从网站发送查询。它将出现在网站所有者的Android移动应用程序中，该网站所有者将回答他们的查询。简而言之，我想实现实时聊天。

现在我只是简单地尝试将消息从安卓应用程序发送到php服务器。但是当我在 chrome 中从 dreamweaver 运行我的 php 脚本时，浏览器会继续加载，并且在我从客户端发送消息时不显示任何输出。

有时 php 脚本会显示我从 android（客户端）发送的一些输出。但我不知道它什么时候有效，什么时候无效。

所以我想在从客户端发送这些消息后立即在 php 脚本中显示这些消息，反之亦然（没有为客户端实现反之亦然，但帮助将不胜感激）。

这是我到目前为止所做的。

PHP脚本：

 <?php
 set_time_limit (0);
 $address = '127.0.0.1';
 $port = 1234;
 $sock = socket_create(AF_INET, SOCK_STREAM, 0);
 socket_bind($sock, $address, $port) or die('Could not bind to address');
 socket_listen($sock);

 $client = socket_accept($sock);
 $welcome = "Roll up, roll up, to the greatest show on earth!'n? ";
 socket_write($client, $welcome,strlen($welcome)) or die("Could not send connect string'n");
do{
$input=socket_read($client,1024,1) or die("Could not read input'n");
echo "User Says:  'n't't't".$input;
if (trim($input) != "")
    { 
    echo "Received input: $input'n";
    if(trim($input)=="END")
    {
        socket_close($spawn);
        break;
    }
}
else{
$output = strrev($input) . "'n"; 
socket_write($spawn, $output . "? ", strlen (($output)+2)) or die("Could not write output'n");              
echo "Sent output: " . trim($output) . "'n";
}
}
while(true);

socket_close($sock);
echo "Socket Terminated";
?>

安卓代码：

  public class ServerClientActivity extends Activity {
   private Button bt;
   private TextView tv;
   private Socket socket;
   private String serverIpAddress = "127.0.0.1";
   private static final int REDIRECTED_SERVERPORT = 1234;
   @Override
    public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    bt = (Button) findViewById(R.id.myButton);
    tv = (TextView) findViewById(R.id.myTextView);
    try
    {
        InetAddress serverAddr = InetAddress.getByName(serverIpAddress);
        socket = new Socket(serverAddr, REDIRECTED_SERVERPORT);
    } 
    catch (UnknownHostException e1) 
    {
        e1.printStackTrace();
    }
    catch (IOException e1)
    {
        e1.printStackTrace();
    }

    bt.setOnClickListener(new OnClickListener() {
        public void onClick(View v) {
           try
           {
              EditText et = (EditText) findViewById(R.id.EditText01);
              String str = et.getText().toString();
              PrintWriter out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(socket.getOutputStream())),true);
              out.println(str);
              Log.d("Client", "Client sent message");
           }
           catch (UnknownHostException e)
           {
              tv.setText(e.getMessage());
              e.printStackTrace();
           }
           catch (IOException e) 
           {
              tv.setText(e.getMessage());
              e.printStackTrace();
           }
           catch (Exception e) 
           {
              tv.setText(e.getMessage());
              e.printStackTrace();
           }
        }
     });       
   }
 }

我刚刚粘贴了Android的点击按钮事件代码.编辑文本是我要输入文本的文本框。IP 地址和端口与 php 脚本相同。

    $client->on('read', function($data) use ($client) {
        $client->onRead($data);
    });

while (true) 
    if (($msgsock = socket_accept ( $sock )) === false) {
        echo "socket_accept() failed: reason: " . socket_strerror ( socket_last_error ( $sock ) ) . "'n";
    break;
    }
    // We got a client connected, lets process it in separate thread
    if (($pid = pcntl_fork()) === -1) {
        echo "pcntl_fork() failed. Make sure you are on Linux sustem, but not on Windows'n";
        break;
    }
    if (!$pid) { // client
        handleClient($msgsock);
        exit();
    }
    // parent server will wait to accept more clients connections in new loop
}

while (true) {
    if (false === ($buf = socket_read ( $msgsock, 2048, PHP_BINARY_READ ))) {
        echo "socket_read() failed: reason: " . socket_strerror ( socket_last_error ( $msgsock ) ) . "'n";
        return;
    }
    if (empty($buf)) { // do disconnection check
        echo "Client disconnected'n";
        return;
    }
   // -------------------------------------------------------------
   // PUT YOUR BUSINESS LOGIC HERE
   // TO HANDLE MESSAGES OF THE CHAT AND GENERATE RESPONSE TO USER
   // I RECOMMEND TO USE SOMETHING LIKE MEMCACHE/REDIS/MONGO/MYSQL/TXT-FILES
   // FOR MULTIPROCESS DATA INTERCHANGE
   // -------------------------------------------------------------
// transfer data to client
    socket_write($msgsock, $returnText, strlen($returnFrame));
}
socket_close ( $msgsock );