PHP에서 웹 소켓을 사용할 때 주소를 바인드 할 수 없습니다. 서버에 업로드 할 때

Question

두 개의 프로그램을 만들었습니다. 하나는 서버이고 다른 하나는 chatroom을 만드는 클라이언트이지만 문제는 서버에 업로드하면 오류 메시지가납니다.

Warning: socket_bind(): unable to bind address [98]: Address already in use 

나는 웹을 통해 검색 한 적이 있지만 이전 답변은 websocket과 관련되어 있지만 문제는 동일합니다. Linux CentOS에서 호스팅됩니다. 아래는 코드입니다. localhost에서 작업 중입니다. 포트 번호도 변경했습니다. 내가 https://code.google.com/p/phpwebsocket/code을 실행할 때도 마찬가지입니다. 다음 URL에서 아래 코드를 얻을 수 있습니다 : http://www.sanwebe.com/2013/05/chat-using-websocket-php-socket.

<?php 
// where is the socket server? 
$host = "XX.XX.XXX.XX"; 
$port = "25763"; 
$message = "Hello Server This is the first message to the server"; 
echo "Message To server :".$message; 
// create socket 
$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP) or die("Could not create socket\n"); 
// connect to server 
$result = socket_connect($socket, $host, $port) or die("Could not connect to server\n"); 
// send string to server 
socket_write($socket, $message, strlen($message)) or die("Could not send data to server\n"); 
// get server response 
$result = socket_read ($socket, 1024) or die("Could not read server response\n"); 
echo "Reply From Server :".$result; 
// close socket 
socket_close($socket); 
    // print result to browser 
?> 

작업 서버 코드 : ... 감사

Server.php

<?php 
// set some variables 
// don't timeout! 
set_time_limit(0); 
ob_implicit_flush(); 

$host = "XX.XX.XXX.XX"; 
$port = "25764"; 

// create socket 
$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP) or die("Could not create socket\n"); 
// bind socket to port 
socket_set_option($socket, SOL_SOCKET, SO_REUSEADDR, 1); 
$result = socket_bind($socket, $host, $port) or die("Could not bind to socket\n"); 
// start listening for connections 
$result = socket_listen($socket, 3) or die("Could not set up socket listener\n"); 
//create & add listning socket to the list 
$clients = array($socket); 
//start endless loop, so that our script doesn't stop 
while (true) { 
    //manage multipal connections 
    $changed = $clients; 
    //returns the socket resources in $changed array 
    socket_select($changed, $null, $null, 0, 10); 
    //check for new socket 
    if (in_array($socket, $changed)) { 
     $socket_new = socket_accept($socket); //accpet new socket 
     $clients[] = $socket_new; //add socket to client array 

     $header = socket_read($socket_new, 1024); //read data sent by the socket 
     perform_handshaking($header, $socket_new, $host, $port); //perform websocket handshake 

     socket_getpeername($socket_new, $ip); //get ip address of connected socket 
     $response = mask(json_encode(array('type'=>'system', 'message'=>$ip.' connected'))); //prepare json data 
     send_message($response); //notify all users about new connection 

     //make room for new socket 
     $found_socket = array_search($socket, $changed); 
     unset($changed[$found_socket]); 
    } 

    //loop through all connected sockets 
    foreach ($changed as $changed_socket) { 

     //check for any incomming data 
     while(socket_recv($changed_socket, $buf, 1024, 0) >= 1) 
     { 
      $received_text = unmask($buf); //unmask data 
      $tst_msg = json_decode($received_text); //json decode 
      $user_name = $tst_msg->name; //sender name 
      $user_message = $tst_msg->message; //message text 
      $user_color = $tst_msg->color; //color 

      //prepare data to be sent to client 
      $response_text = mask(json_encode(array('type'=>'usermsg', 'name'=>$user_name, 'message'=>$user_message, 'color'=>$user_color))); 
      send_message($response_text); //send data 
      break 2; //exist this loop 
     } 

     $buf = @socket_read($changed_socket, 1024, PHP_NORMAL_READ); 
     if ($buf === false) { // check disconnected client 
      // remove client for $clients array 
      $found_socket = array_search($changed_socket, $clients); 
      socket_getpeername($changed_socket, $ip); 
      unset($clients[$found_socket]); 

      //notify all users about disconnected connection 
      $response = mask(json_encode(array('type'=>'system', 'message'=>$ip.' disconnected'))); 
      send_message($response); 
     } 
    } 
} 
// close the listening socket 
socket_close($sock); 

function send_message($msg) 
{ 
    global $clients; 
    foreach($clients as $changed_socket) 
    { 
     @socket_write($changed_socket,$msg,strlen($msg)); 
    } 
    return true; 
} 


//Unmask incoming framed message 
function unmask($text) { 
    $length = ord($text[1]) & 127; 
    if($length == 126) { 
     $masks = substr($text, 4, 4); 
     $data = substr($text, 8); 
    } 
    elseif($length == 127) { 
     $masks = substr($text, 10, 4); 
     $data = substr($text, 14); 
    } 
    else { 
     $masks = substr($text, 2, 4); 
     $data = substr($text, 6); 
    } 
    $text = ""; 
    for ($i = 0; $i < strlen($data); ++$i) { 
     $text .= $data[$i]^$masks[$i%4]; 
    } 
    return $text; 
} 

//Encode message for transfer to client. 
function mask($text) 
{ 
    $b1 = 0x80 | (0x1 & 0x0f); 
    $length = strlen($text); 

    if($length <= 125) 
     $header = pack('CC', $b1, $length); 
    elseif($length > 125 && $length < 65536) 
     $header = pack('CCn', $b1, 126, $length); 
    elseif($length >= 65536) 
     $header = pack('CCNN', $b1, 127, $length); 
    return $header.$text; 
} 

//handshake new client. 
function perform_handshaking($receved_header,$client_conn, $host, $port) 
{ 
    $headers = array(); 
    $lines = preg_split("/\r\n/", $receved_header); 
    foreach($lines as $line) 
    { 
     $line = chop($line); 
     if(preg_match('/\A(\S+): (.*)\z/', $line, $matches)) 
     { 
      $headers[$matches[1]] = $matches[2]; 
     } 
    } 

    $secKey = $headers['Sec-WebSocket-Key']; 
    $secAccept = base64_encode(pack('H*', sha1($secKey . '258EAFA5-E914-47DA-95CA-C5AB0DC85B11'))); 
    //hand shaking header 
    $upgrade = "HTTP/1.1 101 Web Socket Protocol Handshake\r\n" . 
    "Upgrade: websocket\r\n" . 
    "Connection: Upgrade\r\n" . 
    "WebSocket-Origin: $host\r\n" . 
    "WebSocket-Location: wss://$host:$port/test3/server.php\r\n". 
    "Sec-WebSocket-Accept:$secAccept\r\n\r\n"; 
    socket_write($client_conn,$upgrade,strlen($upgrade)); 
} 
?> 

Client.php

<!DOCTYPE html> 
<html> 
<head> 
<meta charset='UTF-8' /> 
<style type="text/css"> 
<!-- 
.chat_wrapper { 
    width: 500px; 
    margin-right: auto; 
    margin-left: auto; 
    background: #CCCCCC; 
    border: 1px solid #999999; 
    padding: 10px; 
    font: 12px 'lucida grande',tahoma,verdana,arial,sans-serif; 
} 
.chat_wrapper .message_box { 
    background: #FFFFFF; 
    height: 150px; 
    overflow: auto; 
    padding: 10px; 
    border: 1px solid #999999; 
} 
.chat_wrapper .panel input{ 
    padding: 2px 2px 2px 5px; 
} 
.system_msg{color: #BDBDBD;font-style: italic;} 
.user_name{font-weight:bold;} 
.user_message{color: #88B6E0;} 
--> 
</style> 
</head> 
<body> 
<?php 
$colours = array('007AFF','FF7000','FF7000','15E25F','CFC700','CFC700','CF1100','CF00BE','F00'); 
$user_colour = array_rand($colours); 
?> 

<script src="//ajax.googleapis.com/ajax/libs/jquery/2.0.0/jquery.min.js"></script> 

<script language="javascript" type="text/javascript"> 
$(document).ready(function(){ 
    //create a new WebSocket object. 
    var wsUri = "ws://XX.XX.XXX.XX:25764/test3/server.php";  
    websocket = new WebSocket(wsUri); 
    websocket.onopen = function(ev) { // connection is open 
     $('#message_box').append("<div class=\"system_msg\">Connected!</div>"); //notify user 
    } 

    $('#send-btn').click(function(){ //use clicks message send button 
     var mymessage = $('#message').val(); //get message text 
     var myname = $('#name').val(); //get user name 

     if(myname == ""){ //empty name? 
      alert("Enter your Name please!"); 
      return; 
     } 
     if(mymessage == ""){ //emtpy message? 
      alert("Enter Some message Please!"); 
      return; 
     } 

     //prepare json data 
     var msg = { 
     message: mymessage, 
     name: myname, 
     color : '<?php echo $colours[$user_colour]; ?>' 
     }; 
     //convert and send data to server 
     websocket.send(JSON.stringify(msg)); 
    }); 

    //#### Message received from server? 
    websocket.onmessage = function(ev) { 
     var msg = JSON.parse(ev.data); //PHP sends Json data 
     var type = msg.type; //message type 
     var umsg = msg.message; //message text 
     var uname = msg.name; //user name 
     var ucolor = msg.color; //color 

     if(type == 'usermsg') 
     { 
      $('#message_box').append("<div><span class=\"user_name\" style=\"color:#"+ucolor+"\">"+uname+"</span> : <span class=\"user_message\">"+umsg+"</span></div>"); 
     } 
     if(type == 'system') 
     { 
      $('#message_box').append("<div class=\"system_msg\">"+umsg+"</div>"); 
     } 

     $('#message').val(''); //reset text 
    }; 

    websocket.onerror = function(ev){$('#message_box').append("<div class=\"system_error\">Error Occurred - "+ev.data+"</div>");}; 
    websocket.onclose = function(ev){$('#message_box').append("<div class=\"system_msg\">Connection Closed</div>");}; 
}); 
</script> 
<div class="chat_wrapper"> 
<div class="message_box" id="message_box"></div> 
<div class="panel"> 
<input type="text" name="name" id="name" placeholder="Your Name" maxlength="10" style="width:20%" /> 
<input type="text" name="message" id="message" placeholder="Message" maxlength="80" style="width:60%" /> 
<button id="send-btn">Send</button> 
</div> 
</div> 

</body> 
</html> 

작업 클라이언트 코드를 도와주세요

<?php 
    $host = "XX.XX.XXX.XX"; 
    $port = "25763"; 
    // don't timeout! 
    set_time_limit(0); 
    // create socket 
    $socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP) or die("Could not create socket\n"); 
    // bind socket to port 
    socket_set_option($socket, SOL_SOCKET, SO_REUSEADDR, 1); 
    $result = socket_bind($socket, $host, $port) or die("Could not bind to socket\n"); 
    // start listening for connections 
    $result = socket_listen($socket, 3) or die("Could not set up socket listener\n"); 
    // accept incoming connections 
    // spawn another socket to handle communication 
    $spawn = socket_accept($socket) or die("Could not accept incoming connection\n"); 
    // read client input 
    $input = socket_read($spawn, 1024) or die("Could not read input\n"); 
    // clean up input string 
    $input = trim($input); 
    echo "Client Message : ".$input; 
    // reverse client input and send back 
    $output = strrev($input) . "\n"; 
    echo $spawn; 
    socket_write($spawn, $output, strlen ($output)) or die("Could not write output\n"); 
    // close sockets 
    socket_close($spawn); 
    socket_close($socket); 
    ?> 

Answer 1

특정 포트에 바인딩 할 수 없다는 것을 알고있는 몇 가지 이유가 있습니다. 첫 번째는 이미 무언가가 해당 포트에 바인딩되어 있다는 것입니다. 이 경우 있는지 여부를 확인 여부하려면 NETSTAT 사용해보십시오 : 당신이 포트에 바인딩하지 못할 수 있습니다

$ netstat -anl 

다른 이유는 당신이 "특권 포트로 언급 무슨에 결합하는 루트해야한다는 것입니다 ". 그에 대한 자세한 내용은이 읽기 : 내가 포트하지만 같은 문제의 많은 검사 때문에

Is there a way for non-root processes to bind to "privileged" ports on Linux?