note 80441 added to ref.sockets

Another Workaround for sending UDP Broadcasts to 255.255.255.255 and receiving the responses on a specific port: <?php // NOTE! // This is quick and dirty code! It comes without error handling! // Timeout in seconds waiting for a response. $timeout = 10; $sock = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP); socket_bind($sock,"0.0.0.0",10000); socket_set_option($sock, SOL_SOCKET, SO_BROADCAST, 1); $buf = "Hello World"; socket_sendto($sock, $buf, strlen($buf), 0, "255.255.255.255", 10000); socket_set_block($sock); socket_set_option($sock, SOL_SOCKET, SO_RCVTIMEO, array("sec"=>10,"usec"=>0)); $timeout += time(); while (time() <= $timeout-1) { if (($len = @socket_recvfrom($sock,$ret,2048,0,$cIP,$cPort)) != false) { echo bin2hex($ret); } } socket_set_nonblock($sock); socket_close($sock); ?> ---- Server IP: 212.124.37.9 Probable Submitter: 84.184.124.51 ---- Manual Page -- http://www.php.net/manual/en/ref.sockets.php Edit -- https://master.php.net/note/edit/80441 Del: integrated -- https://master.php.net/note/delete/80441/integrated Del: useless -- https://master.php.net/note/delete/80441/useless Del: bad code -- https://master.php.net/note/delete/80441/bad+code Del: spam -- https://master.php.net/note/delete/80441/spam Del: non-english -- https://master.php.net/note/delete/80441/non-english Del: in docs -- https://master.php.net/note/delete/80441/in+docs Del: other reasons-- https://master.php.net/note/delete/80441 Reject -- https://master.php.net/note/reject/80441 Search -- https://master.php.net/manage/user-notes.php