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출처 샘플 참고 사이트

http://www.hacksparrow.com/node-js-udp-server-and-client-example.html

1. UDP Server

1. var PORT = 7001;
2. var HOST = '127.0.0.1';
3. var dgram = require('dgram');
4. var server = dgram.createSocket('udp4');
5. server.on('listening', function () {
6. var address = server.address();
7. console.log('UDP Server listening on ' + address.address + ":" + address.port);
8. });
9. server.on('message', function (message, remote) {
10. console.log(remote.address + ':' + remote.port +' - ' + message);
11. });
12. server.bind(PORT, HOST);

2. UDP Client

1. var PORT = 7001;
2. var HOST = '127.0.0.1';
3. var dgram = require('dgram');
4. var message = new Buffer('TEST!');
5. var client = dgram.createSocket('udp4');
6. client.send(message, 0, message.length, PORT, HOST, function(err, bytes) {
7. if (err) throw err;
8. console.log('UDP message sent to ' + HOST +':'+ PORT);
9. client.close();
10. });

3. PHP UDP Client

1. <?php
2. $socket = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP);
3. $in = 'test!';
4. var_dump (socket_sendto($socket, $in,strlen($in), 0,'127.0.0.1',7001));
5. socket_close($socket);
6. ?>