Question

我有一个PHP套接字服务器，需要与多个客户端进行通信。我知道if(socket_listen($sock, 5)监听5个客户。但是，当我尝试连接第二个设备时却没有连接，就像第一个设备的连接阻止了其他连接一样。

当服务器和客户端进行通信并且由于某种原因连接已关闭时，我也遇到问题，然后如果我尝试再次连接同一设备，否则将无法正常工作。然后，我需要重新启动服务器，以便它能够再次接受连接。

<?php
require "init.php";
$sql = "SELECT * FROM `info` where sent = 0 order by id desc";

error_reporting(E_ALL);

/* Allow the script to hang around waiting for connections. */
set_time_limit(0);

/* Turn on implicit output flushing so we see what we're getting
 * as it comes in. */
ob_implicit_flush();

$address = '192.168.50.30';
$port = 3005;
if(($sock = socket_create(AF_INET, SOCK_STREAM, SOL_TCP)) === false) {
    echo "socket_create() failed: reason: " . socket_strerror(socket_last_error()) . "\n";
}

if(socket_bind($sock, $address, $port) === false) {
    echo "socket_bind() failed: reason: " . socket_strerror(socket_last_error($sock)) . "\n";
}

if(socket_listen($sock, 5) === false) {
    echo "socket_listen() failed: reason: " . socket_strerror(socket_last_error($sock)) . "\n";
}

do {
    if (($msgsock = socket_accept($sock)) === false) {
        echo "socket_accept() failed: reason: " . socket_strerror(socket_last_error($sock)) . "\n";
        break;
    }
    /* Send Welcome. */
    $msg = "HELLO".chr(0);
    socket_write($msgsock, utf8_encode ($msg), strlen($msg));


    do {

        $result = $con->query($sql);
        $row = $result->fetch_assoc();

        if(!empty($row["Token"])){
            $msg = $row["Token"]. chr(0);

            socket_write($msgsock, utf8_encode($msg), strlen($msg));
            $result = $con->query("update info set sent = 1 where id = ".$row["id"]);
        }


//        $talkback = $_SERVER['REMOTE_ADDR']." Said: '$buf'.\n".chr(0);
//        socket_write($msgsock, $talkback, strlen($talkback));
    } while (true);
    socket_close($msgsock);
} while (true);

socket_close($sock);
?>

PHP套接字服务器如何接受与多个客户端的连接和通信（android）

0 个答案: