PHP Info protected by password

phpinfo-protected.php

<?php

/**
 * PHP Info protected by password
 * @author Pooky https://github.com/Pooky/
 */
 
$valid_passwords = array ("worker" => "secret");
$valid_users = array_keys($valid_passwords);

$user = $_SERVER['PHP_AUTH_USER'];
$pass = $_SERVER['PHP_AUTH_PW'];

$validated = (in_array($user, $valid_users)) && ($pass == $valid_passwords[$user]);

if (!$validated) {
    header('WWW-Authenticate: Basic realm="My Realm"');
    header('HTTP/1.0 401 Unauthorized');
    die ("Not authorized");
}

phpinfo();

?>