php - 如何在 linux 主机中运行 php 套接字服务器

Question

我已经在本地主机上实现了一个套接字服务器

我使用的脚本来自http://www.sanwebe.com/2013/05/chat-using-websocket-php-socket

脚本是

$host = "localhost"; //host
    $port = 9099; //port
    if(isset($argv[1]))
    {
        $host = $argv[1];
    }
    if(isset($argv[2]))
    {
        $port = $argv[2];
    }
    $null = NULL; //null var
    $ips=array();
    //Create TCP/IP sream socket
    $socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
    //reuseable port
    socket_set_option($socket, SOL_SOCKET, SO_REUSEADDR, 1);

    //bind socket to specified host
    socket_bind($socket, 0, $port);

//listen to port
socket_listen($socket);

//create & add listning socket to the list
$clients = array($socket);
$clients_ip=array();
//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
        socket_getpeername($socket_new, $ip);
        $clients[] = $socket_new; //add socket to client array
        $clients_ip[$ip] = $socket_new;
        $header = socket_read($socket_new, 1024); //read data sent by the socket
        perform_handshaking($header, $socket_new, $host, $port); //perform websocket handshake

         //get ip address of connected socket

            $ips[]=$ip;
        $response = mask(json_encode(array('ip'=>$ip,'type'=>'c', 'message'=>$ip.' connected','ips'=>$ips))); //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[$found_socket]);
    }
//print_r($changed);exit;

    if(count($changed)>0)
    {
    //loop through all connected sockets
    foreach ($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 clientjson_encode(array('type'=>'usermsg', 'name'=>$user_name, 'message'=>$user_message, 'color'=>$user_color))
            $response_text = mask($received_text);
            if(isset($tst_msg->type))
            {
                if($tst_msg->type=="n")
                {
                    @socket_write($clients_ip[$tst_msg->to_ip],$response_text,strlen($response_text));
                }
            }



            //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[$found_socket]);
            if (($key = array_search($ip, $ips)) !== false) 
            {
                unset($ips[$key]);
            }
            $ips=array_values($ips);
            //notify all users about disconnected connection
            $response = mask(json_encode(array('ip'=>$ip,'type'=>'d', 'message'=>$ip.' disconnected','ips'=>$ips)));

            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: $host\r\n" .
    "WebSocket-Location: ws://$host:$port/demo/shout.php\r\n".
    "Sec-WebSocket-Accept:$secAccept\r\n\r\n";
    socket_write($client_conn,$upgrade,strlen($upgrade));
}

我在 xampp shell 中运行这个程序，就像

php -q 服务器路径\server.php

我有一个支持 shell 的服务器 但是当我运行脚本时

php -q 服务器路径\server.php

它可以工作，但是当 shell 关闭时服务器会自动关闭

那么如何在不自动关闭的情况下持续运行此服务器？

我有一个 linux 主机包

Answer 1

使用此代码，

php -f server.php

如果你想在banground中持续运行你可以使用nohub

nohup php server.php &

如果想杀死你使用kill的进程

kill processid