將php websocket服務器在apache中運行？

Question

我參考了本教程，並設法運行我的本地主機中的簡單聊天應用程序。 https://www.sanwebe.com/2013/05/chat-using-websocket-php-socket

我想了解某一件事：

我想從彗星長輪詢技術切換到該 的WebSocket（PHP）由於在我的腦海裏只有一個關心這是不是在APACHE運行 。我瞭解到Apache不是正確的選擇 的東西。它創建每個連接的請求，因此佔用了大量的內存 ，這極大地減慢了我的電腦。

我希望的WebSocket按照教程上面不會以任何方式阿帕奇處理。它應該在自己的獨立服務器上運行。

但我無法確定無論是單獨運行或利用 阿帕奇，因爲我很新的的WebSocket和實時啄。

1）握手：

var wsUri = "ws://localhost:9000/server.php"; 

這裏，server.php應該是一個後臺運行的進程，在這種情況下，它是不是在阿帕奇運行？

由於它在後臺運行，它是否也被稱爲守護進程？正如我所瞭解的共享主機會發現守護進程並殺死它，我仍然可以按照上面的共享主機教程來實現php websocket？或者有更好的方法嗎？

server.php

<?php 
$host = 'localhost'; //host 
$port = '9000'; //port 
$null = NULL; //null var 

//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); 

//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($response); 
     } 
    } 
} 
// close the listening socket 
socket_close($socket); 

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)); 
} 

Answer 1

簡短的回答

1. 沒有，server.php不阿帕奇正如你所說運行。
2. 不，大多數共享主機不允許您打開端口9000.您需要聯繫系統管理員，或者如果預算不足，您可以訂閱VPS服務。