array(2) {
  ["active"]=>
  bool(false)
  ["cart"]=>
  array(0) {
  }
}

<h1>Sign Up</h1>
<form method="POST">
    Username: <input type="text" name="username" />
    <br />
    Password: <input type="password" name="password" />
    <br />
    <input type="submit" value="Sign Up" />
</form>