php实现ping

  <?php // created by joe lumbroso

  // see some other good php3 scripts

  // goto http://www.dtheatre.com/scripts echo "<font color=\"red\"><blink><b>Pinging</b></blink></font><br>";

  $to_ping = "dtheatre.com";

  $count = 3;

  $psize = 65;

  echo " Please be patient, this can take a few moments...\n<br><br>";

  flush(); while (1) {

  ?>

  <pre>

  <?

  exec("ping -c $count -s $psize $to_ping", $list);

  for ($i=0;$i < count($list);$i++) {

  print $list[$i]."\n";

  }

  ?>

  </pre>

  <?

  flush();

  sleep(3);

  }

  ?> (出处:Viphot)