injection_protection

<?
$array = array("'", "union", "select", "<script>", "alert", "order", "../", "/etc/passwd", "c99", "/etc/shadow", "substr", "%5C", "%3C", "%3E", "%5B", "%5D", "%5E", "%7C", "union", "select", "insert", "cast", "declare", "--", "drop", "exec", "substring", "md5", "benchmark", "mosConfig", "base64", "proc", "environ", "eval", "shell_exec", "c99", "c100", "r57", "&amp;sa=U");
foreach ($_REQUEST as $req) {
    foreach ($array as $arr) {
        if (preg_match("/".$arr."/i", $req) == true) {
            die("Fuck you Hacker!");
        }
    }
}
?>