Shoutbox

Here's an adaptation of stonesour's ip_check(), with strict proxy support:


<?php
function ip_check()
{
  // Addresses to block
  $block_ip[0] = "64.246.30.37";
  $block_ip[1] = "207.46.249.252";
  $block_ip[2] = "212.143.162.198";

  if (in_array($_SERVER["REMOTE_ADDR"], $block_ip))
    return false;
  if (in_array($_SERVER["HTTP_CLIENT_IP"], $block_ip))
    return false;
  if (isset($_SERVER["HTTP_X_FORWARDED_FOR"])) {
    $proxy = explode(",",$_SERVER["HTTP_X_FORWARDED_FOR"]);
    $proxy = str_replace(" ","",$proxy); $i = 0;
    while ($proxy[$i]) {
      if (in_array($proxy[$i], $block_ip))
        return false;
      $i++;
    }
  }
  return true;
}
?>


This one should also ban people who use standard HTTP proxies... Note that the function returns TRUE if the user is allowed entry, and FALSE if s/he is banned.

Does anyone know how to fill the $block_ip array more efficiently?