我使用php建立了一个套接字连接,下面是完整的工作,单个套接字的代码但是不能使用多个连接只能一次接受一个连接
error_reporting(E_ALL);
// sudo lsof -t -i:10000
// php -f server.php
/* 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 = '192.168.5.155';
$port = 3490;
if (($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($sock, 1024) === false) {
echo "socket_listen() failed: reason: " . socket_strerror(socket_last_error($sock)) . "\n";
}
do {
if (($msgsock = socket_accept($sock)) === false) {
echo "socket_accept() failed: reason: " . socket_strerror(socket_last_error($sock)) . "\n";
break;
}
/* Send instructions. */
$msg = "\nWelcome to the PHP Test Server. \n" .
"To quit, type 'quit'. To shut down the server type 'shutdown'.\n";
socket_write($msgsock, $msg, strlen($msg));
do {
if (false === ($buf = socket_read($msgsock, 2048, PHP_BINARY_READ))) {
/*echo "socket_read() failed: reason: " . socket_strerror(socket_last_error($msgsock)) . "\n";
break 2;*/
}
if (!$buf = trim($buf)) {
continue;
}
if ($buf == 'quit') {
break 2;
}
if ($buf == 'shutdown') {
socket_close($msgsock);
break 2;
}
$talkback = "PHP: You said '$buf'.\n";
if($buf != '')
{
$req_get = $talkback;
$file = time();
$fp = fopen('data/'.$file.'.txt', 'a+');
fwrite($fp, $req_get);
fclose($fp);
socket_write($msgsock, $talkback, strlen($talkback));
}
//echo "$buf\n";
} while (true);
socket_close($msgsock);
} while (true);
socket_close($sock);
我需要帮助才能让它与客户建立多种联系。 之后我需要从客户端发送数据进入数据库。
答案 0 :(得分:2)
您无法同时使用阻塞套接字连接侦听多个套接字。您需要的是non-blocking socket connections socket_select方法而不是socket_accept
。
我的建议是使用某种PHP事件循环实现(如reactphp)。
无论如何,如果您仍想自己实施,可以查看reactphp/event-loop StreamSelectLoop implementation中stream_select
用法的示例。