<?php
// 
// http://es.php.net/manual/es/security.globals.php#76550
// 
if (ini_get(register_globals))  // If register_globals is enabled
{ // Unset $_GET keys
  foreach ($_GET as $get_key => $get_value) {
    if (ereg('^([a-zA-Z]|_){1}([a-zA-Z0-9]|_)*$', $get_key)) eval("unset(\${$get_key});");
  } // Unset $_POST keys
  foreach ($_POST as $post_key => $post_value) {
    if (ereg('^([a-zA-Z]|_){1}([a-zA-Z0-9]|_)*$', $post_key)) eval("unset(\${$post_key});");

  } // Unset $_REQUEST keys
  foreach ($_REQUEST as $request_key => $request_value) {
    if (ereg('^([a-zA-Z]|_){1}([a-zA-Z0-9]|_)*$', $request_key)) eval("unset(\${$request_key});");
  }
}
?>