[B] Webfirewall

[36c]

Das geht wesentlich einfacher und schneller zu programmieren:

<?php

// Define bad Words
$BadWords = array("<", ">", "'", "union", "select", "order", "http");

// Glue our requeststring
$ReqStr .= implode('', $_GET); 
$ReqStr .= implode('', $_POST);
$ReqStr .= implode('', $_REQUEST);
  
 // Search for badwords
foreach($BadWords as $bw) {
    if(stripos($ReqStr, $bw) !== false) die('Hacking attempt!');
}

?>