PHP的Socket通訊之UDP篇____PHP

1.建立一簡單的UDP伺服器

//伺服器資訊$server = 'udp://127.0.0.1:9998';//訊息結束符號$msg_eof = "\n";$socket = stream_socket_server($server, $errno, $errstr, STREAM_SERVER_BIND);if (!$socket) {die("$errstr ($errno)");}do {//接收用戶端發來的資訊$inMsg = stream_socket_recvfrom($socket, 1024, 0, $peer);//服務端列印出相關資訊echo "Client : $peer\n";echo "Receive : {$inMsg}";//給用戶端發送資訊$outMsg = substr($inMsg, 0, (strrpos($inMsg, $msg_eof))).' -- '.date("D M j H:i:s Y\r\n");stream_socket_sendto($socket, $outMsg, 0, $peer);} while ($inMsg !== false);

2.簡單的用戶端

function udpGet($sendMsg = '', $ip = '127.0.0.1', $port = '9998'){$handle = stream_socket_client("udp://{$ip}:{$port}", $errno, $errstr);if( !$handle ){die("ERROR: {$errno} - {$errstr}\n");}fwrite($handle, $sendMsg."\n");$result = fread($handle, 1024);fclose($handle);return $result;}$result = udpGet('Hello World');echo $result;