使用来自例如http://www.codeproject.com/Tips/418814/Socket-Programming-in-PHPphp套接字 - 听“互联网”?
SERVER.PHP:
// set some variables
$host = "127.0.0.1";
$port = 25003;
// don't timeout!
set_time_limit(0);
// create socket
$socket = socket_create(AF_INET, SOCK_STREAM, 0) or die("Could not create socket\n");
// bind socket to port
$result = socket_bind($socket, $host, $port) or die("Could not bind to socket\n");
// start listening for connections
$result = socket_listen($socket, 3) or die("Could not set up socket listener\n");
// accept incoming connections
// spawn another socket to handle communication
$spawn = socket_accept($socket) or die("Could not accept incoming connection\n");
// read client input
$input = socket_read($spawn, 1024) or die("Could not read input\n");
// clean up input string
$input = trim($input);
echo "Client Message : ".$input;
// reverse client input and send back
$output = strrev($input) . "\n";
socket_write($spawn, $output, strlen ($output)) or die("Could not write output\n");
// close sockets
socket_close($spawn);
socket_close($socket);
CLIENT.PHP:
$host = "127.0.0.1";
$port = 25003;
$message = "Hello Server";
echo "Message To server :".$message;
// create socket
$socket = socket_create(AF_INET, SOCK_STREAM, 0) or die("Could not create socket\n");
// connect to server
$result = socket_connect($socket, $host, $port) or die("Could not connect to server\n");
// send string to server
socket_write($socket, $message, strlen($message)) or die("Could not send data to server\n");
// get server response
$result = socket_read ($socket, 1024) or die("Could not read server response\n");
echo "Reply From Server :".$result;
// close socket
socket_close($socket);
正如你所看到的,服务器上127.0.0.1:port和客户听正在连接到127.0.0.1:port
但是,我希望我的客户端和服务器位于两台不同的服务器上。
例如:
我的服务器将监听是对IP 11.22.33.44:1234和我的客户将从IP 12.23.45.66:1234连接
我将使用Linux服务器,但现在我正在我的Windows机器上做这个。
所以我想听我的外部IP。 当我作为主机输入我的外部IP时,出现错误。
Warning: socket_bind(): unable to bind address [10049]: The requested address is not valid in its context. in C:\xampp\htdocs\server.php on line 12
Warning: socket_listen(): unable to listen on socket [10022]: An invalid argument was supplied. in C:\xampp\htdocs\server.php on line 14
Warning: socket_accept(): unable to accept incoming connection [10022]: An invalid argument was supplied. in C:\xampp\htdocs\server.php on line 17
Warning: socket_read() expects parameter 1 to be resource, boolean given in C:\xampp\htdocs\server.php on line 18
Warning: socket_write() expects paramet
ER 1是资源,布尔在C中给出:\ XAMPP \ htdocs中\ server.php上线20
我怎样才能做到这一点?
谢谢。
你会得到什么错误?错误消息通常包含重要信息。 – 2014-10-26 20:23:07
更新了问题 – user3893623 2014-10-26 20:25:53
您确定“外部IP”是属于您正在运行该程序的计算机的IP地址(而不是属于为该计算机提供NAT的路由器的IP地址)吗? – Quentin 2014-10-26 20:28:16