How to get a script to run only if viewer is from a particular ip address

[ghurty]

Hi

 

I have a php script that I only what to be executed if the visitor is from a paticular ip range (for example 192.168.5.*), what lines would I add to accomplish this?

 

Thanks

[trq]

<?php

  if (!substr($_SERVER['REMOTE_ADDR'],0,9) == '192.168.5.')) {
    die();
  } else {
    // rest of script.
  }

?>

 

Be aware though that relying on an ip is a very unreliable way of tracking a user.