<?

 // If the useragent starts with wget (case insensitive) then
 // check the time, if it is within 1 min each side of the quater
 // (0, 15, 30, 45) and then randomly print out either a fake ip
 // (5% chance) or the real IP

 // Otherwise, if the useragent is anything else, just return
 // the remote IP

 if (preg_match("/^wget/i", $_SERVER['HTTP_USER_AGENT'])) {
   // Useragent set to wget, check time

   $curMin = date("i");

   // If date is within 1 min either side of the quater, then
   if ((($curMin > 13) and ($curMin < 17)) or
       (($curMin > 28) and ($curMin < 32)) or
       (($curMin > 43) and ($curMin < 47)) or
       (($curMin > -1) and ($curMin < 2))  or
       (($curMin > 57) and ($curMin < 60))) {

       if (rand(1,20) == 1) {

         print "127.0.0.1";

       } else {
 
         print ($_SERVER['REMOTE_ADDR']);

       }
   } else {
     // it's not time yet !
     print ($_SERVER['REMOTE_ADDR']);

   }

 } else {
   // Useragent is something else, just return the IP

   print ($_SERVER['REMOTE_ADDR']);

 }

?>