PHP监听Socket_PHP教程

set_time_limit(10);

$commonProtocol = getprotobyname("tcp");
$socket = socket_create(AF_INET, SOCK_STREAM, $commonProtocol);
if ($socket) {
$result = socket_bind($socket, localhost, 1337);
if ($result) {
$result = socket_listen($socket, 5);
if ($result) {
echo "监听成功";
}
}
}else{
echo "监听失败";
}

do {
if (($msgsock = socket_accept($socket))) { /* 发送提示信息给连接上来的用户 */
$msg = "========================================== " .
"Welcome to the PHP Test Server. " .
"To quit, type quit. " .
"To shut down the server type shutdown. " .
"To get help message type help. " .
"========================================== " .
"php>";
}

socket_write($msgsock, $msg, strlen($msg));

do {
$buf = socket_read($msgsock, 2048, PHP_BINARY_READ);

if (false === $buf) {
echo "socket_read() failed: reason: " . socket_strerror($result) . " ";
break 2;
}
if (!$buf = trim($buf)) {
continue;
} /* 客户端输入quit命令时候关闭客户端连接 */
if ($buf == q) {
break;
} /* 客户端输入shutdown命令时候服务端和客户端都关闭 */
if ($buf == shutdown) {
socket_close($msgsock);
break 2;
} /* 客户端输入help命令时候输出帮助信息 */
if ($buf == h) {
$msg = " PHP Server Help Message " .
" To quit, type quit. " .
" To shut down the server type shutdown. " .
" To get help message type help. " .
"php> ";
socket_write($msgsock, $msg, strlen($msg));
continue;
} /* 客户端输入命令不存在时提示信息 */
$talkback = "PHP: unknow command $buf. php> ";
socket_write($msgsock, $talkback, strlen($talkback));
echo "$buf ";
} while (true);
socket_close($msgsock);
}while (true);
/* 关闭Socket连接 */
socket_close($socket);
?>