// Verhindert den Verzeichiswechsel
if(!empty($_POST["filename"]) && !preg_match("=\.\.%2F|\.\./=",$_POST["filename"])) {
    $mytxt = $_POST["zeit"]."\n".stripslashes(urldecode($_POST["eingabe_pur"]))."\n";
    $fp = fopen ($_POST["filename"], "w+");
    fwrite($fp,"$mytxt");
	if ($fp) {
	    echo ("&erro=NONE&");
	} else {
	    echo ("&erro=OK&");
	}
	fclose($fp);
} else {
	echo ("&erro=OK&");
}
?>