Someone

  $sux = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP);  if (!$sux) exit('create error');  if (!socket_bind($sux, $local_ip, 2210)) exit('bind error');  $suxref[] =& $sux;  $ip = '';  $port = 7130;  do {     socket_select($suxref, $write = NULL, $except = NULL, 5);  // sec. timout     $z = @socket_recvfrom($sux, $buf, 9999, 0, $ip, $port);      if (strlen($buf) > 0) {       echo "\r\nRemote sent: " . $buf;       socket_sendto($sux,  "I hear you", 9999, 0x4, $ip, $port);       }     }  while(true);